Chemical Engineering - MCQ Practice Questions

At the critical point of a substance, which of the following is true?

For an ideal gas undergoing isothermal expansion from V₁ to V₂, the entropy change is:

The residual property in thermodynamics is defined as the difference between:

A process where temperature and pressure both increase is most likely:

The compressibility factor Z for a real gas at high pressures typically:

In a constant volume process, the heat added to the system equals:

The partial molar volume of a component in solution is:

For a binary ideal solution at constant T and P, the Gibbs energy of mixing is:

A system absorbs 500 J of heat and does 200 J of work on surroundings. The change in internal energy is:

The virial equation of state truncated after second term is: PV = nRT(1 + B(T)P/RT). What does B(T) represent?

For a reversible process in an isolated system, the entropy change is:

An engineering application of throttling includes:

The osmotic pressure of a dilute solution is given by van't Hoff equation: π = iMRT. What does 'i' represent?

When CO₂ gas at 1 atm is cooled below the sublimation temperature (~195 K), it directly converts to dry ice without passing through liquid phase. This phenomenon is explained by:

For a real gas obeying virial equation PV/nRT = 1 + B/V̄, the internal energy change with volume at constant T is:

In a Joule-Thomson expansion of real gas at 298 K, a positive μ_JT (inversion coefficient) means:

At constant temperature and pressure, which of the following represents the Gibbs free energy change for a spontaneous process?

The Clausius-Clapeyron equation relates vapor pressure to temperature. Which statement is correct?

For an ideal gas undergoing adiabatic compression, the entropy change is:

In a constant pressure process, the heat absorbed by a system equals: