Q. Which of the following is not correct for a reversible adiabatic process ?

View solution

Q. The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

View solution

Q. Throttling (Joule-Thomson effect) process is a constant __________ process.

View solution

Q. For the reversible exothermic reaction, N₂ + 3H₂ ↔ 2NH₃, increase of pressure would

View solution

Q. Which of the following has the minimum value of COP for a given refrigeration effect?

View solution

Q. __________ decreases during adiabatic throttling of a perfect gas.

View solution

Q. Pick out the wrong statement.

View solution

Q. Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will

View solution

Q. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the

View solution

Q. Clausius - Clayperon equation is applicable to __________ equilibrium processes.

View solution

Q. In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc ?

View solution

Q. After throttling, gas temperature

View solution

Q. The chemical potential for a pure substance is __________ its partial molal free energy.

View solution

Q. Entropy change in case of reversible adiabatic process is

View solution

Q. 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

View solution

Q. For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.

View solution

Q. The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

View solution

Q. Mollier chart is a __________ plot.

View solution

Q. Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

View solution

Q. What happens in a reversible adiabatic compression ?

View solution