A. Specific volume
B. Work
C. Pressure
D. Temperature
✅ The correct answer is option B.
Engineering
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4002. What is the number of degrees of freedom for liquid water in equilibrium with a mixture of nitrogen and water vapor?
A. 2
B. 0
C. 3
D. 1
✅ The correct answer is option A.
4003. In the ammonia synthesis reaction, N₂ + 3H₂ ⇋ 2NH₃ + 22.4 kcal, the formation of NH₃ will be favoured by
A. High temperature
B. Low pressure
C. Low temperature only
D. Both low temperature and high pressure
✅ The correct answer is option D.
4004. Requisites of a reversible process is that the
A. System and surroundings pressure be equal
B. Friction in the system should be absent
C. System and surroundings temperature be equal
D. None of these
✅ The correct answer is option B.
4005. Clayperon equation deals with the
A. Rate of change of vapour pressure with temperature
B. Effect of an inert gas on vapour pressure
C. Calculation of ΔF for spontaneous phase change
D. Temperature dependence of heat of phase transition
✅ The correct answer is option A.
4006. In the reaction; N₂ + O₂ ⇋ 2NO, increasing the pressure will result in
A. Shifting the equilibrium towards right
B. Shifting the equilibrium towards left
C. No change in equilibrium condition
D. None of these
✅ The correct answer is option C.
4007. If atmospheric temperature and dew point are nearly equal, then the relative humidity is
A. Zero
B. 50%
C. Almost 100%
D. Unpredictable
✅ The correct answer is option C.
4008. For an isothermal process, the internal energy of a gas
A. Increases
B. Decreases
C. Remains unchanged
D. Data insufficient, can’t be predicted
✅ The correct answer is option C.
4009. If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.
A. Enthalpy
B. Volume
C. Both A & B
D. Neither A nor B
✅ The correct answer is option C.
4010. The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of
A. T
B. T and P
C. T, P and Z
D. T and Z
✅ The correct answer is option B.