Q. In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. Cᵨ/Cᵥ), then it represents a reversible __________ process.

View solution

Q. Throttling process is a/an __________ process.

View solution

Q. The main feature of Carnot refrigeration cycle is that, it

View solution

Q. Heat of reaction at constant volume is identified with __________ change.

View solution

Q. Charles' law for gases states that

View solution

Q. If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ↔ C₃H₈(g) will be __________ Kcal.

View solution

Q. Helmholtz free energy (A) is defined as

View solution

Q. As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches

View solution

Q. For any system, what is the minimum number of degrees of freedom?

View solution

Q. At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is

View solution