The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the ______________ of a substance?

Related Mcqs:

Pick out the correct statement ?

A. Entropy and enthalpy are path functions B. In a closed system, the energy can be exchanged with the surrounding, while matter cannot be exchanged C. All the natural processes are reversible in nature D. Work is a state function...

Equilibrium constant of a reaction varies with the____________________?

A. Initial concentration of the reactant B. Pressure C. Temperature D. None of these...

For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion does not depend on the________________?

A. Steam to ethylene ratio B. Temperature C. Pressure D. None of these...

A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?

A. Logarithmic B. Arithmetic C. Geometric D. Harmonic...

Throttling process is a/an _____________ process?

A. Reversible and isothermal B. Irreversible and constant enthalpy C. Reversible and constant entropy D. Reversible and constant enthalpy...