問題一覧
1
Cp-Cv=
R
2
At high temperature and low pressure Real gas
doesn't obey Boyle's law
3
Charles law (at constant pressure...
..VαT)
4
According to Charles law if the graph between V and T is plotted backwards at -273°C the
volume of the gas becomes zero
5
graph between P and 1/V at constant temperature
Straight line
6
Boyle's law (at constant temperature)
Vα1/P
7
how many molecules are there in a cubic metre
3x10^25
8
Lower fixed point on Centigrade scale
0°
9
β
3α
10
Upper fixed point in Kelvin scale
373
11
When a body is heated the energy gained by the molecules
increases their kinetic energy and molecules move with grater amplitude so thermal expansion occurs
12
Boyle's law is obeyed by real gases at
Low pressure high temperature
13
which of the following is true
Cp>Cv
14
average transitional kinetic energy is equal to
Absolute Temperature
15
Coefficient of Volumetric expansion
β
16
K=
1.38x10^-23J/moleculesK
17
The SI unit of α and β is
K-¹
18
product of the molecular mass and specific heat capacity of a substance is called
molar specific heat
19
Device used to maintain a steady temperature
Bimetellic strip
20
At constant temperature P and V graph is a
hyperbolic curve
21
Lower fixed point in Kelvin scale
273
22
ΔQ/mΔT is
specific heat capacity
23
Absolute zero
-273°C
24
Divisions in Kelvin scale
100
25
Relationship between specific and molar specific heat capacity
C=Mc
26
Upper fixed point in Centigrade scale
100°C
27
How many portions are in Fahrenheit scale
180
28
Metal at the outside of Bimetellic strip has
higher coefficient of expansion
29
Upper fixed point in Fahrenheit scale
212° F
30
the diameter of a molecule considered as a sphere is about
3x10^-10m
31
K =
Boltzmann constant
32
ΔL=
L1αΔT
33
the value of R is
8.314 J/mol K
34
At constant pressure Graph between temperature and volume is a
straight line
35
Melting point of ice
0°C , 32° F and 273 K
36
PV=constant The value of constant depends upon
Mass and Temperature of gas
37
ΔL is
directly proportional to L1 and ΔT
38
Boiling point of water
100°C , 212° F and 373 K
39
At very low temperature Charles law is not obeyed because
all gases liquify
40
it is a temperature at which the motion of the molecules of any substance cease to move
absolute zero
41
This picture shows
Pressure increases volume decrease
42
Lower fixed point on Fahrenheit scale
32° F
43
K=
R/NA
44
specific heat capacity is
amount of heat required to raise the temperature of a unit mass of a substance through unit degree of temperature
45
How many sections are in Centigrade scale
100