Question:easy
The maximum non-PV work that a system can perform at constant pressure and temperature is:
The maximum non-PV work that a system can perform at constant pressure and temperature is:
Show Hint
At constant T and P, -delta G equals maximum non-expansion work.
Updated On: Jul 3, 2026
- \(\Delta H\)
- \(\Delta G\)
- \(\Delta S\)
- \(\Delta A\)
Show Solution
The Correct Option is B
Solution and Explanation
delta H includes all heat, not separated. delta S has wrong units. delta A applies at constant V,T not P. Only delta G, constructed as G=A+PV, subtracts out PV work, leaving -delta G as max non-PV work at constant T,P.
\[\boxed{\Delta G}\]Was this answer helpful?
0
Top Questions on Thermodynamics
A real gas within a closed chamber at \( 27^\circ \text{C} \) undergoes the cyclic process as shown in the figure. The gas obeys the equation \( PV^3 = RT \) for the path A to B. The net work done in the complete cycle is (assuming \( R = 8 \, \text{J/molK} \)):
- MHT CET - 2024
- Physics
- Thermodynamics
- Two vessels \( A \) and \( B \) are of the same size and are at the same temperature. Vessel \( A \) contains \( 1 \, \text{g} \) of hydrogen and vessel \( B \) contains \( 1 \, \text{g} \) of oxygen. \( P_A \) and \( P_B \) are the pressures of the gases in \( A \) and \( B \) respectively. Then \( \frac{P_A}{P_B} \) is:
- MHT CET - 2024
- Physics
- Thermodynamics
- A mixture of one mole of monoatomic gas and one mole of diatomic gas (rigid) are kept at room temperature (\( 27^\circ \text{C} \)). The ratio of specific heat of gases at constant volume respectively is:
- MHT CET - 2024
- Physics
- Thermodynamics
- If the activation energy for the forward reaction is \( 150 \, \text{kJ/mol} \) and that of the reverse reaction is \( 260 \, \text{kJ/mol} \), what is the enthalpy change for the reaction?
- MHT CET - 2024
- Chemistry
- Thermodynamics
- Want to practice more? Try solving extra ecology questions todayView All Questions