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  • Which of the following statements/ relationships in not correct in thermodynamic changes ?Option: 1 <img alt="\Delta U = 0\ \ \textup{(Isothermal rev

Which of the following statements/ relationships in not correct in thermodynamic changes ?

Option: 1

\Delta U = 0\ \ \textup{(Isothermal reversible expansion of a gas)}


Option: 2

w = -nRTln\frac{V_2}{V_1}\; \textup{(isothermal reversible expansion of an ideal gas)}


Option: 3

w = nRTln\frac{V_2}{V_1}\; \textup{(isothermal reversible expansion of an ideal gas)}


Option: 4

\textup{For a system of constant volume heat involved directly changes to internal energy.}


Answers (1)

best_answer

option 2 is correct.

it should be + sign not - sign.

Posted by

mansi

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