What is the value of ln y (where y = activity co-efficient) for ideal gases ?

Related Mcqs:

Cp – Cv = R is valid for ______________ gases?

A. Ideal B. Very high pressure C. Very low temperature D. All of the above...

The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?

A. Reversible isothermal volume change B. Heating of a substance C. Cooling of a substance D. Simultaneous heating and expansion of an ideal gas...

Which of the following exemplifies an adiabatic process ?

A. Melting of ice B. Condensation of alcohol vapor C. Sudden bursting of a cycle tube D. Evaporation of water...

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be _____________ c.c?

A. 2.73 B. 28.3 C. 273 D. 283...

During a reversible isothermal expansion of an ideal gas, the entropy change is___________________?

A. +ve B. 0 C. -ve D. ∞...