Compute the mass of a 2 m^3 propane at 280 kPa and 40°C

Find the mass of carbon dioxide having a pressure of 20psia at 200°F with 10 ft³ volume

An Ideal gas at 0.80 atmospheres and 87°C 0.450 liter. How many moles are In the sample? (R = 0.0821 liter-atm/mole-K)

Convert 750°R to °K.

If the gage pressure of a medium is 30 kPa (vacuum) and the atmospheric pressure is 101.3 kPa, the absolute pressure will be:

If a particle has a velocity of 4 meters per second and a kinetic energy of 144 Joules, then the mass, in kilograms of this particle must be:

A condenser vacuum gauge reads 715 mm Hg when the barometer stands at 757 mm Hg. State the absolute pressure in the condenser in kN/m2 or kPa.

Determine the force in Newton in a piston of 465 mm2 area with a pressure of 0.172 MPa.

One piston of a hydraulic press has an area of 1 cm2. The other piston has an area of 25 cm2. If a force of 150 N is applied on the smaller piston, what will be the total force on the larger piston is both piston surfaces are the same level?

The work done on air is 10.86 kJ/kg, determine the compressor power if it is receiving 272 kg/min if air.

A water tank of 18 ft wide ,14 ft long and 4 ft high, calculate the pressure at the bottom of the tank.

Oil flow though a 16 tubes on a single cooler with a velocity of 2 m/s. The internal diameter of the tube is 30mm and oil density is 0.85 gm/ml. Find the volume flow in liters per sec.

The pressure of 750 mm Hg in kN/m2.

A substance temperature was 620 deg R. What is the temperature in deg C?

Unknown volume of container gas of gas of 1 atmosphere is allowed to expand to another container of 10 m3 volume at 500 mm Hg at constant temperature. Find the unknown volume.

An iron block weighs 5 Newton and has volume of 200 cm3. What is the density of the block?

If air is at a pressure of 22.22 psia and at ternperature of 800°R, what is the specific volume?

The specific gravity of mercury is 13.55. What is the specific weight of mercury?

100 g of water are mixed with 150 g of alcohol (density 790 kg/m3). What is the specific volume of the resulting mixtures, assuming that the fluids mixed completely?

A 10 kg block is raised vertically 3 meters. What is the change in potential energy?

How many cubic meters is 100 gallons of liquid?

Steam turbine is receiving 1014 lbm/hr of steam, determine the horsepower output of the turbine if the work done by steam is 251 Btu/lbm

What is the resulting pressure when one pound of air at 15 psia and 200°F is heated at constant volume to 800°F

A bicycle tire has a volume of 600 cm3. It is inflated with carbon dioxide to pressure of 551.43 kPa at 20 °C. How many grams of CO2 are contained in the tire? Rco2 = 0.18896 kJ/kg.K

The absolute pressure at the bottom of a vertical column of water is 15.5 psia. What is the height of this column?

A water temperature rise of 18 °F in the water cooled condenser is equivalent in °C to:

A vertical column of water will be supported to what height by standard atmospheric pressure?

The specific weight of liquid is 60 lb/ft what is the equivalent to kN/m3:

A cylinder weighs 150 lb. Its cross-sectional area is 40 square inches. When the cylinder stands vertically on one end, what pressure does the cylinder exert on the floor?

Air enters a nozzle steadily at 2.21 kg/m3 and 30 m/s. What is the mass flow rate through the nozzle if the inlet area of the nozzle is 80 cm2?

The work required to accelerate an 800-kg car from rest to 100 km/h on a level road:

Assuming that there are no heat effects and no friction effects, find the speed of a 3220-lb body after it falls 778ft from rest.

What is the flow rate through a pipe 4 inches in diameter carrying water at a velocity of 11 ft/sec?

If the specific weight of a liquid is 58.5 lb, per cubic foot, what is the specific volume of the liquid, cm3/g?

What is the resulting pressure when one pound of air at 0.3 psig and 200 °F is heated at constant volume to 800 °F?

A mixture of 0.4 Ibm of helium and 0.2 Ibm of oxygen is compressed polytropically from 14.7 psia and 60°F to 60 psia according to n = 1.4. Determine the final temperature, T2.

During the working stroke of an engine the heat transferred out of the system was 150 kJ/kg of working substances. The internal energy also decreased by 400 kJ/kg of working substance. Determine the work done.

What is the absolute pressure if the gauge pressure is reading 9 bar and the atmospheric pressure is 0.9bar?

What is the mass of acetylene gas, V=0.94 cu.ft., R=59.35 ft.lb/lb °R, T = 90°F, P= 200 psia

A refrigerating system operates on the reversed Carnot Cycle. The higher temperature of the refrigerant in the sytem is 120 °F and the lower is 10 °F. The capacity is 20 tons. Neglect losses. Determine the coeffecient of performance.

Aluminum has a specific heat of 0.902 J/g x °C. How much heat is lost when a piece of aluminum with a mass of 23.984 g cools from a temperature of 415.0 °C to a temperature of 22.0 °C

If the temperature of an air parcel is -20.5 C, and its density is 0.690 kg/m3, what is the pressure of the air parcel?

A 35.0 mL sample of gas is enclosed in a flask at 22 degrees Celsius. If the flask was placed in an ice bath at 0 degrees Celsius, what would the new gas volume be if the pressure is held constant?

The thermal efficiency of a Carnot cycle operating between 170°C and 620°C is closest to:

A pressure gage registers 50 psig in a region where the barometer reads 14.8 psia. Find the absolute pressure in kPa.

Determine the pressure exerted on a diver at 30 m below the free surface of the sea. Assume a barometric pressure of 101 kPa and the specific gravity of sea water is 1.03.

An air compressor has an inlet enthalpy of 35 Btu/lb and an exit enthalpy of 70 Btu/lb. The mass flow rate of air is 3 lb/s. If the heat loss is 466.62 Btu/min, find the work input to the compressor.

A condenser vacuum gauge reads 600 mm Hg when the barometer reads 760 mm Hg. What is the absolute condenser pressure in bar?

Water flows in a pipe at the rate of 10 kg/s. If the velocity of flow is 10 m/s, find the pipe diameter.

What is the resulting pressure when one kilogram of air at 104 kPa and 98 °C is heated at constant volume to 450 °C?

Calculate the approximate enthalpy of water at 90 °C.

A Carnot cycle operates between 30 °C and 350 °C. Find the cycle efficiency. A.

A Carnot cycle has a maximum temperature of 550 °F and minimum temperature of 100 °F. If the heat added is 4200 Btu/min, find the horsepower output of the engine.

A Carnot cycle has a sink temperature of 100 °F and a cycle efficiency of 70%. Find the temperature of the heat source.

Determine the specific weight of air at 760 mmHg absolute and 22 °C?

A steam turbine receives a steam flow of 1.35 kg/s and delivers 500 KW. The heat loss from the casing is negligible. Find the change of specific enthalpy across the turbine when the velocities at the entrance and exit and the difference in elevation at the entrance and exit are negligible

Fifty kilograms of cooling water per second enter the condenser at 25°C and leaves at 50°C. Find the heat carried away by water.

A heat engine has a thermal efficiency of 50%. How much power does the engine produce when heat is transferred at a rate of 10^9 kJ/hr?

Air at 300°K and 200 kpa is heated at constant pressure to 600°K. Determine the change of internal energy.

A heat source ay 800 deg K losses 2000 of heat to a sink at 500 deg K. Determine the entropy generated during this process.

Helium gases is compressed in an adiabatic compressor from an initial state of 14 psia and 50 deg F to a final temperature of 320 deg F in a reversible manner. Determine he exit pressure of Helium.

A spherical balloon with a diameter of 6 m is filled with helium at 20 deg C and 200 kpa. Determine the mole number.

The air in an automobile tire with a volume of 0.53 R is at 90 deg F and 20 psig. Determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. Assume the atmospheric pressure to be 14.7 psia and the temperature and the volume to remain constant.

A rigid tank contains 20 lbm of air at 20 psia and 70 deg F. More air is added to the tank until the pressure and temperature rise to 35 psia and 90 deg F, respectively. Determine the amount of air added to the tank.

A rigid tank contains 5 kg of an ideal gas at 4 atm and 40 deg C. Now a valve is opened, and half of mass of the gas is allowed to escape. If the final pressure in the tank is 1.5 atm, the final temperature in the tank is:

The pressure of an automobile tire is measured to be 200 kpa(gage) before the trip and 220 kpa(gage) after the trip at a location where the atmospheric pressure is 90 kpa. If the temperature of the air in the tire before the trip is 25 deg C, the air temperature after the trip is:

Water is boiling at 1 atm pressure in a stainless pan on an electric range. It is observed that 2 kg of liquid water evaporates in 30 min. The rate of heat transfer to the water is:

A one cubic container contains a mixture of gases composed of 0.02 kg-mol of oxygen and 0.04 kg-mol of helium at a pressure of 220 kPa. What is the temperature of this ideal gas mixture in degrees Kelvin?

A Camot cycle operates between the temperature limits of 300 deg K and 1500 deg K, and produces 600 KW of net power. The rate of entropy change of the working fluid during the heat addition process is:

A heat engine receives heat from a source at 1200 deg K at a rate of 500 KJ/S and rejects the waste heat to a sink at 300 deg K. If the power output of the engine is 200 KW, the second law efficiency of this heat engine is:

A house is maintained at 22 deg C in winter by electric resistance heaters. If the outdoor temperature is 5 deg C, the second law efficiency of the resistance heaters is:

An adiabatic tank containing air is used to power an air turbine during times of peak power demand. The tank has a volume of 500 m3 and contains air at 1000 kPa and 500°K. Determine the mass remaining when the pressure reaches 100 kPa.

During an experiment on Charles Law, the volume of gas trapped in the apparatus was 10000mm' when the temperature was 18°C. The temperature of the gas was then raised to 85°C. Determine the new volume of gas trapped in the apparatus if the pressure exerted on the gas remained constant.

At a pressure of 60°F, A motorbike ire is inflated to 33psig. As it is driven along the C-5 road, the temperature rise to 76°F. Assuming the volume remains constant. Determine the final gauge pressure.

A Camot cycle uses nitrogen ( = 1.399) as the working substance. The heat supplied is 54 kJ and the adiabatic expansion ratio is 10. Determine the heat rejected.

A tank contains 20 kg of air at 200 kPa (gage) and 23°C. During heating process the temperature of air rises. For safety purposes a technician installed a relief-type valve so that pressure of air inside the tank never exceed $260 kPa (gage). At what air temperature the relief valve will start releasing air?

In a process carried out on a closed system, the work transferred into the system was 4200KJ and the increase in the total energy of the system was 3500KJ. Determine the heat transferred.

A fluid in a cylinder is at a pressure of 700KN/m2. It is expanded at a constant pressure from a volume of 0.28m3 to a volume of 1.68m3. Determine the work done.

If the density of the gas is 0.003 slugs per cubic foot, what is the specific weight of the gas?

The specific gravity of mercury relative to water is 13.55. What is the specific weight of mercury? (The specific weight of water is 62.4 lb, per cubic foot.)

A cylinder weights 150 lby. Its cross-sectional area is 40 square inches. When the cylinder stands vertically the floor? on one end, what pressure does the cylinder exert on

What pressure is a column of water 100 centimeters high equivalent to?

Air has a specific heat of 1 kJ/kg.K. If 2 BTU of energy is added to 100 g of air, what is the change in air temperature?

In a constant temperature, closed system process, 100 BTU of heat is transferred to the working fluid at 100 °F. What is the change in entropy of the working fluid?

A power of 6 kW is supplied to the motor of a crane. The motor has an efficiency of 90%. With what constant speed does the crane lift an 800 lb, weight?

The temperature inside a fumace is 320 °C and temperature of the outside is - 10 °C. What is the temperature difference in °R.

An Otto cycle has a compression ratio of 8. Find the pressure ratio during compression.

A Diesel cycle has a cut-off ratio of 2.20 and a compression ratio of 10. Find the cycle efficiency.

A diesel engine which takes in air at 1 bar, 26 °C has a compression ratio of 19. Calculate the operating clearance in percent.

An Otto cycle has a clearance of 8% and heat added of 1000 kJ, Find the heat rejected.

An Otto cycle has a pressure ratio of 7 What is the cycle compression ratio?