(C) In an isothermal process,the temperature $T$ of the system remains constant throughout the expansion.Since the internal energy $U$ of an ideal gas

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Internal energy remains unchanged

(C) In an isothermal process,the temperature $T$ of the system remains constant throughout the expansion.Since the internal energy $U$ of an ideal gas is a function of temperature only $(U = f(T))$,a constant temperature implies that there is no change in the internal energy of the gas.Therefore,$\Delta U = 0$.

Class 11 Physics Thermodynamics Isothermal Process

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In an isothermal expansion,what happens to the internal energy of the gas?

A
Internal energy of the gas increases
B
Internal energy of the gas decreases
C
Internal energy remains unchanged
D
Average kinetic energy of gas molecule decreases

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Class 11 Questions

Class 11

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Thermodynamics

Subtopic

Isothermal Process

An ideal gas at pressure $P$ is enclosed in a container that is placed in a reservoir at temperature $T$. If the volume of the gas is increased to two times its original value,then the new pressure $P^{\prime}$ is equal to:

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$Assertion :$ The isothermal curves intersect each other at a certain point.
$Reason :$ The isothermal changes take place rapidly,so the isothermal curves have very little slope.

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$A$ sample of an ideal gas undergoes an isothermal expansion. If $dQ$,$dU$,and $dW$ represent the amount of heat supplied,the change in internal energy,and the work done respectively,then:

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The internal energy of an ideal gas increases during an isothermal process when the gas is

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Which of the following,in general,is a slow process?

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In an isothermal expansion,what happens to the internal energy of the gas?

Similar Questions

An ideal gas at pressure $P$ is enclosed in a container that is placed in a reservoir at temperature $T$. If the volume of the gas is increased to two times its original value,then the new pressure $P^{\prime}$ is equal to:

$Assertion :$ The isothermal curves intersect each other at a certain point.$Reason :$ The isothermal changes take place rapidly,so the isothermal curves have very little slope.

$A$ sample of an ideal gas undergoes an isothermal expansion. If $dQ$,$dU$,and $dW$ represent the amount of heat supplied,the change in internal energy,and the work done respectively,then:

The internal energy of an ideal gas increases during an isothermal process when the gas is

Which of the following,in general,is a slow process?

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$Assertion :$ The isothermal curves intersect each other at a certain point.
$Reason :$ The isothermal changes take place rapidly,so the isothermal curves have very little slope.