Pick out the wrong statement
Phase rule variables are intensive properties
Heat and work are both state function
The work done by expansion of a gas in vacuum is zero
CP and CV are state function
- Specific/molar Gibbs free energy for a pure substance does not change during
- Clausius-Clapeyron Equation gives accurate result, when the
- Compressibility factor of a gas is
- The activity of an ideal gas is numerically __________ its pressure.
- For a given substance at a specified temperature, activity is __________ to fugacity.
- Work done is a
- Which of the following is not a common refrigerant?
- Joule-Thomson Co-efficient at any point on the inversion curve is
- Which of the following is not an intensive property?
- Activity co-efficient is a measure of the
- Pick out the correct statement.
- Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression…
- Claude gas liquefaction process employs cooling
- The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for
- Critical compressibility factor for all substances
- If the internal energy of an ideal gas decreases by the same amount as the work done by the system,…
- The expression, nCv(T2 - T1), is for the __________ of an ideal gas.
- Gibbs free energy of mixing at constant pressure and temperature is always
- For spontaneous changes in an isolated system (S = entropy)
- For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion…
- A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will…
- Pick out the wrong statement.
- A change in state involving a decrease in entropy can be spontaneous, only if
- The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components.…
- Kopp's rule is used to calculate the heat capacity of
- Melting of wax is accompanied with __________ in entropy.
- Gibbs-Helmholtz equation is
- Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.
- First law of thermodynamics is mathematically stated as
- Which of the following is an undesirable characteristic of a refrigerant?