Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the
An isolated system can exchange __________ with its surroundings.
Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is
Clayperon equation deals with the
Which is not a state function ?
Throttling process is a/an __________ process.
Isobaric process means a constant process.
Joule-Thomson experiment is
Out of the following refrigeration cycles, which one has maximum COP ?
Entropy is a measure of the __________ of a system.
A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is
Requisites of a reversible process is that the
Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.
Mollier diagram is a plot of
Entropy change of mixing two liquid substances depends upon the
At absolute zero temperature, all substances have the same
For an ideal liquid solution, which of the following is unity ?
Refrigeration capacity of a household refrigerator may be round about __________ tons.
The main feature of Carnot refrigeration cycle is that, it
When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is
No work is done by the system, when a reaction occurs at constant
Pick out the correct statement:
In any spontaneous process,
Fundamental principle of refrigeration is based on the __________ law of thermodynamics.
For a spontaneous process, free energy
Boyle's law for gases states that
Internal energy change of a system over one complete cycle in a cyclic process is
The activity of an ideal gas is numerically __________ its pressure.
The four properties of a system viz. P, V, T, S are related by __________ equation.
Heat of reaction at constant volume is identified with __________ change.
If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the
1st law of thermodynamics is nothing but the law of conservation of
Which of the following is a thermodynamic property of a system ?
Heating of water under atmospheric pressure is an __________ process.
The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
What is the value of ln y (where y = activity co-efficient) for ideal gases ?
When a gas in a vessel expands, its internal energy decreases. The process involved is
Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in
If the pressure onc.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.
Which of the following diagrams does not represent an Otto cycle ?
Chemical potential is a/an
In the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.
The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing.
Van Laar equation deals with the activity co-efficients in
Specific heat of a gas for a reversible adiabatic process is
Co-efficient of Performance (COP) of a refrigerator is the ratio of the
The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria is/are
A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system
A system is said to be isopiestic, if there is no __________ change.
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