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In the isothermal expansion of an ideal ...

In the isothermal expansion of an ideal gas

A

`Delta U = 0`

B

`Delta T= 0`

C

`q=0`

D

`W= -q`

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
Isothermal `rArr Delta T= 0 rArr Delta U = 0 rArr q + W = 0`
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Knowledge Check

  • During the isothermal expansion of an ideal gas

    A
    the internal energy remains unaffected
    B
    the temperature remains constant
    C
    the enthalpy remains unaffected
    D
    the enthalpy becomes zero

  • During isothermal expansion of an ideal gas, its internal energy

    A
    Decreases
    B
    Increases
    C
    May increase or decrease
    D
    Remains unchanged

  • During isothermal expansion of an ideal gas, its internal energy

    A
    Decreases
    B
    Increases
    C
    May increase or decrease
    D
    Remain unchanged

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    For isothermal expansion of an ideal gas into vacuum, among the following how many are zero, Pext, g, Delta T, Delta U, Delta H, Delta S, Delta G, Delta S_("surr"), Delta S_("total")

    (A): The heat absorbed during isothermal expansion of an ideal gas against vacuum is zero. (R): The volume occupied by the molecules is zero.

    Which of the processes described below are irreversible ? a) The increase in temprature of an iron rod by hammering it b) A gas in a small cantainer at a temprature T_(1) is brought in contact with a big reservoir at a higher temprature T_(2) which increases the temprature of the gas c) A quasi-static isothermal expansion of an ideal gas in cylinder fitted with a frictionless piston d) An ideal gas is enclosed in a piston cylinder arrangement with adiabatic walls. A weight W is added to the piston, resulting in compression of gas

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    What is correct about isothermal expansion of the ideal gas ?

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