Law of corresponding states says that
Two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same
The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature
No gas can be liquefied above the critical temperature, howsoever high the pressure may be.
The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories)
- The standard Gibbs free energy change of a reaction depends on the equilibrium
- Which of the following non-flow reversible compression processes require maximum work?
- Ideal gas law is applicable at
- After throttling, gas temperature
- Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity…
- A gas can be liquefied by pressure alone only, when its temperature is __________ its critical temperature.
- In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v1…
- Lenz's law results from the law of conservation of
- Pick out the extensive property out of the following.
- Which of the following is not correct for a reversible adiabatic process?
- For a cyclic process, a fixed ratio between heat and work
- Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is
- Which of the following is not a common refrigerant?
- Pick out the correct statement.
- In a turbine, the fluid expands almost
- The free energy change for a chemical reaction is given by (where, K = equilibrium constant)
- High __________ is an undesirable property for a good refrigerant.
- Compressibility factor for almost all the gases are approximately same at the same
- As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then…
- The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300…
- Work done may be calculated by the expression ∫ p dA for __________ processes.
- Refrigerants commonly used for domestic refrigerators are
- To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (ΔHV/R) (1/T1 - 1/T2) from…
- The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
- Entropy change for an irreversible isolated system is
- For equilibrium process (i.e. reversible) in an isolated system
- Cv for an ideal gas
- There is a change in __________ during the phase transition.
- The unit of fugacity is the same as that of the
- In any spontaneous process, the __________ free energy decreases.