Third law of thermodynamics is concerned with the
Value of absolute entropy
Energy transfer
Direction of energy transfer
None of these
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- Specific/molar Gibbs free energy for a pure substance does not change during
- The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
- Refrigeration capacity of a household refrigerator may be round about __________ tons.
- The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT)…
- Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system…
- While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the…
- During Joule-Thomson expansion of gases
- 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is
- If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial…
- The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria…
- The kinetic energy of gas molecule is zero at
- At absolute zero temperature, the __________ of the gas is zero.
- For equilibrium process (i.e. reversible) in an isolated system
- Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.
- Activity co-efficient is a measure of the
- The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
- Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid…
- Critical solution temperature (or the consolute temperature) for partially miscible liquids (e.g., phenol-water)…
- Pick out the correct statement.
- Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is
- Melting of ice is an example of an __________ process.
- Which of the following is a widely used refrigerant in vapour compression refrigeration system (using…
- Enthalpy changes over a constant pressure path are always zero for __________ gas.
- Those solutions in which there is no volume change upon mixing the components in the liquid state and…
- In a homogeneous solution, the fugacity of a component depends upon the
- Critical temperature is defined as the temperature above which a gas will
- Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.
- For an isothermal reversible compression of an ideal gas
- For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
- Which of the following represents the Virial equation of state?