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Physics chapter 1

Physics chapter 1
45問 • 2年前
  • ABC
    • 通報

    問題一覧

  • 1

    Lower fixed point on Centigrade scale

    0°

  • 2

    Melting point of ice

    0°C , 32° F and 273 K

  • 3

    Upper fixed point in Centigrade scale

    100°C

  • 4

    Boiling point of water

    100°C , 212° F and 373 K

  • 5

    How many sections are in Centigrade scale

    100

  • 6

    Lower fixed point on Fahrenheit scale

    32° F

  • 7

    Upper fixed point in Fahrenheit scale

    212° F

  • 8

    How many portions are in Fahrenheit scale

    180

  • 9

    Lower fixed point in Kelvin scale

    273

  • 10

    Upper fixed point in Kelvin scale

    373

  • 11

    Divisions in Kelvin scale

    100

  • 12

    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

  • 13

    ΔL is

    directly proportional to L1 and ΔT

  • 14

    ΔL=

    L1αΔT

  • 15

    Coefficient of Volumetric expansion

    β

  • 16

    The SI unit of α and β is

    K-¹

  • 17

    β

    3α

  • 18

    Device used to maintain a steady temperature

    Bimetellic strip

  • 19

    Metal at the outside of Bimetellic strip has

    higher coefficient of expansion

  • 20

    Boyle's law (at constant temperature)

    Vα1/P

  • 21

    PV=constant The value of constant depends upon

    Mass and Temperature of gas

  • 22

    Boyle's law is obeyed by real gases at

    Low pressure high temperature

  • 23

    At high temperature and low pressure Real gas

    doesn't obey Boyle's law

  • 24

    This picture shows

    Pressure increases volume decrease

  • 25

    At constant temperature P and V graph is a

    hyperbolic curve

  • 26

    graph between P and 1/V at constant temperature

    Straight line

  • 27

    Charles law (at constant pressure...

    ..VαT)

  • 28

    At constant pressure Graph between temperature and volume is a

    straight line

  • 29

    At very low temperature Charles law is not obeyed because

    all gases liquify

  • 30

    According to Charles law if the graph between V and T is plotted backwards at -273°C the

    volume of the gas becomes zero

  • 31

    Absolute zero

    -273°C

  • 32

    it is a temperature at which the motion of the molecules of any substance cease to move

    absolute zero

  • 33

    the value of R is

    8.314 J/mol K

  • 34

    how many molecules are there in a cubic metre

    3x10^25

  • 35

    the diameter of a molecule considered as a sphere is about

    3x10^-10m

  • 36

    average transitional kinetic energy is equal to

    Absolute Temperature

  • 37

    K =

    Boltzmann constant

  • 38

    K=

    R/NA

  • 39

    K=

    1.38x10^-23J/moleculesK

  • 40

    specific heat capacity is

    amount of heat required to raise the temperature of a unit mass of a substance through unit degree of temperature

  • 41

    ΔQ/mΔT is

    specific heat capacity

  • 42

    Relationship between specific and molar specific heat capacity

    C=Mc

  • 43

    product of the molecular mass and specific heat capacity of a substance is called

    molar specific heat

  • 44

    Cp-Cv=

    R

  • 45

    which of the following is true

    Cp>Cv

    • 問題一覧

  • 1

    Lower fixed point on Centigrade scale

    0°

  • 2

    Melting point of ice

    0°C , 32° F and 273 K

  • 3

    Upper fixed point in Centigrade scale

    100°C

  • 4

    Boiling point of water

    100°C , 212° F and 373 K

  • 5

    How many sections are in Centigrade scale

    100

  • 6

    Lower fixed point on Fahrenheit scale

    32° F

  • 7

    Upper fixed point in Fahrenheit scale

    212° F

  • 8

    How many portions are in Fahrenheit scale

    180

  • 9

    Lower fixed point in Kelvin scale

    273

  • 10

    Upper fixed point in Kelvin scale

    373

  • 11

    Divisions in Kelvin scale

    100

  • 12

    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

  • 13

    ΔL is

    directly proportional to L1 and ΔT

  • 14

    ΔL=

    L1αΔT

  • 15

    Coefficient of Volumetric expansion

    β

  • 16

    The SI unit of α and β is

    K-¹

  • 17

    β

    3α

  • 18

    Device used to maintain a steady temperature

    Bimetellic strip

  • 19

    Metal at the outside of Bimetellic strip has

    higher coefficient of expansion

  • 20

    Boyle's law (at constant temperature)

    Vα1/P

  • 21

    PV=constant The value of constant depends upon

    Mass and Temperature of gas

  • 22

    Boyle's law is obeyed by real gases at

    Low pressure high temperature

  • 23

    At high temperature and low pressure Real gas

    doesn't obey Boyle's law

  • 24

    This picture shows

    Pressure increases volume decrease

  • 25

    At constant temperature P and V graph is a

    hyperbolic curve

  • 26

    graph between P and 1/V at constant temperature

    Straight line

  • 27

    Charles law (at constant pressure...

    ..VαT)

  • 28

    At constant pressure Graph between temperature and volume is a

    straight line

  • 29

    At very low temperature Charles law is not obeyed because

    all gases liquify

  • 30

    According to Charles law if the graph between V and T is plotted backwards at -273°C the

    volume of the gas becomes zero

  • 31

    Absolute zero

    -273°C

  • 32

    it is a temperature at which the motion of the molecules of any substance cease to move

    absolute zero

  • 33

    the value of R is

    8.314 J/mol K

  • 34

    how many molecules are there in a cubic metre

    3x10^25

  • 35

    the diameter of a molecule considered as a sphere is about

    3x10^-10m

  • 36

    average transitional kinetic energy is equal to

    Absolute Temperature

  • 37

    K =

    Boltzmann constant

  • 38

    K=

    R/NA

  • 39

    K=

    1.38x10^-23J/moleculesK

  • 40

    specific heat capacity is

    amount of heat required to raise the temperature of a unit mass of a substance through unit degree of temperature

  • 41

    ΔQ/mΔT is

    specific heat capacity

  • 42

    Relationship between specific and molar specific heat capacity

    C=Mc

  • 43

    product of the molecular mass and specific heat capacity of a substance is called

    molar specific heat

  • 44

    Cp-Cv=

    R

  • 45

    which of the following is true

    Cp>Cv