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What are the two main characteristics of...

What are the two main characteristics of an ideal gas ?

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(i) The size of its molecules is negligibly small.
(ii) Force of attraction//repulsion between the molecules is zero.
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Knowledge Check

  • For an ideal gas :

    A
    the change in internal energy in a constant pressure process from temperature `T_1 toT_2` is equal to `nC_v(T_2-T_1),` where `C_v` is the molar specific heat at constant volume and n the number of moles of the gas.
    B
    the change in internal energy of the gas and the work done by the gas are equal in magnitude in an adiabatic process.
    C
    the internal energy does not change in an isothermal process.
    D
    no heat is added or removed in an adiabatic process.

  • For an ideal gas :

    A
    The change in internal energy in a constant pressure process form temperatures `T_(1)` and `T_(2)` is equal to `nC_(v) (T_(2) - T_(1))` where `C_(v)` is the molar heat capacity at constant volume and n is the number of moles of the gas
    B
    The change in internal energy and the work done by the gas are equal in magnitude in an adiabatic process
    C
    The internal energy does not change in isothernal process
    D
    no heat is added or removed in an adiabatic process

  • For an ideal gas,

    A
    the change m internal energy in a constant pressure process from temperature `T_1` to `T_2` is equal to, `nC_v(T_2-T_1)`, where `C_v` is the molar specific heat at constant volume and n is the number of moles of the gas
    B
    the change in internal energy of the gas is equal to the work done by the gas in magnitude in an adiabatic process.
    C
    The internal energy shows no change in an isothermal process
    D
    All of options A, B and C

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