A. (dF)T, p 0
C. (dF)T, p = 0
D. (dA)T, v < 0
Related Mcqs:
- For an irreversible process involving only pressure-volume work____________________?
A. (dF)T, p <0
B. (dF)T, p = 0
C. (dF)T, p > 0
D. (dA)T, v >0 - On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ?
A. (∂P/∂V)S = (∂P/∂V)T
B. (∂P/∂V)S = [(∂P/∂V)T]Y
C. (∂P/∂V)S = y(∂P/∂V)T
D. (∂P/∂V)S = 1/y(∂P/∂V)T - A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) ?
A. Δ S1 is always Δ SR
C. Δ S1 is always > Δ SR
D. Δ S1 is always = Δ SR - The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?
A. Isobaric
B. Isothermal
C. Adiabatic
D. None of these - In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?
A. More
B. Less
C. Same
D. Unpredictable; depends on the particular reaction - In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v1 = 1 m3 and v23 m3) is maximum, when the value of ‘n’ is_________________?
A. 0
B. 1
C. y = 1.44
D. 1.66 - The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?
A. R loge 4
B. R log10 4
C. Cv log10 4
D. Cv loge 4 - For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?
A. Cv.dT
B. Cp.dT
C. ∫ Cp.dT
D. ∫ Cv.dT - A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be _____________ c.c?
A. 2.73
B. 28.3
C. 273
D. 283 - A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be________________?
A. 0°C
B. 0°K
C. -136.5°C
D. -136.5°K
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