Q. Second law of thermodynamics is concerned with the

View solution

Q. The third law of thermodynamics states that the

View solution

Q. Consider the reaction, C + O₂ ↔ CO₂ ;ΔH = - 94 kcal. What will be the value of ΔH for the reaction CO₂ → C + O₂ ?

View solution

Q. Which is a state function ?

View solution

Q. For an ideal liquid solution, which of the following is unity ?

View solution

Q. In the decomposition of PCl₅ represented by, PCl₅ ↔ PCl₃ + Cl₂, decrease in the pressure of the system will __________ the degree of dissociation of PCl₅.

View solution

Q. In case of an __________ process, the temperature of the system increases.

View solution

Q. The standard state of a gas (at a given temperature) is the state in which fugacity is equal to

View solution

Q. Cp of a gas at its critical temperature and pressure

View solution

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