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Define the two principle specific heats ...

Define the two principle specific heats of a gas. Explain wy molar specific heat at constant pressure `(C_p)` is greater than the molar specific hat at constant comlume `(C_V)` ?

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The molar specific heat at constant pressure of monoatomic gas is

At a given temperature, the specific heat of a gas at constant pressure is always greater than its specific heat at constant volume.

Knowledge Check

  • Molar specific heat is

    A
    quantity of heat required to raise temperature of one kg through `1^(@)K`
    B
    quantity of heat required to raise temperature of 1 mole through 1 K
    C
    quantity of heat required to raise temperature of 1 gram through 1 K
    D
    none of the above

  • Specific heat at constant pressure C_P of a gas

    A
    more than the specific heat at constant volume `(C_(V))`
    B
    less then the specific heat at constant volume `(C_(V))`
    C
    equal to the specific heat at constant volume `(C_(V))`
    D
    may be more or less than specific heat at constant volume `(C_(V))`

  • The specific heat of a gas at constant pressure is grater than the specific heat at constant volume because

    A
    work is done in the expansion of the gas at constant pressure
    B
    work is done in the expansion of the gas at constant volume
    C
    the attraction between the molecules increases at constant presssure
    D
    the molecular collision increases at constant pressure

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    For an ideal gas , the specific heat at constant pressure C_p is greater than the specific heat at constant volume C_v This is because

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