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Question
Chemistry
Which of the following statements/relationships is not correct in thermodynamic changes ?
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Q. Which of the following statements/relationships is
not
correct in thermodynamic changes ?
JEE Main
JEE Main 2013
States of Matter
A
$\Delta U=0$ (isothermal reversible expansion of a gas)
0%
B
$w= -nRT \,ln\,\frac{V_{2}}{V_{1}}$ (isothermal reversible expansion of an ideal gas)
0%
C
$w= nRT\, ln \, \frac{V_{2}}{V_{1}}$ (isothermal reversible expansion of an ideal gas)
100%
D
For a system of constant volume heat involved directly changes to internal energy
0%
Solution:
For isothermal reversible expansion.
$w=-nRT$ in $\frac{V_{2}}{V_{1}}$