railway RRB JE (CBT I + CBT II) Mock Test 2024 Thermodynamics First Law of Thermodynamics Application of First Law to Closed System
The work done during an isothermal process is:
1
\({P_1}{V_1}{\log _e}\left( {\frac{{{v_2}}}{{{v_1}}}} \right)\)
2
\({P_1}{V_2}{\log _e}\left( {\frac{{{v_1}}}{{{v_2}}}} \right)\)
3
\({P_2}{V_2}{\log _e}\left( {\frac{{{P_2}}}{{{P_1}}}} \right)\)
4
\(\frac{{{P_2}{V_2} - {P_1}{V_1}}}{{n - 1}}\)