Q. In any spontaneous process,

View solution

Q. Which of the following is a thermodynamic property of a system ?

View solution

Q. The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.

View solution

Q. In jet refrigerators, the refrigerating fluid is practically always

View solution

Q. Water on heating from 1 to 4°C

View solution

Q. Pick out the correct statement.

View solution

Q. Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.

View solution

Q. Internal energy change of a system over one complete cycle in a cyclic process is

View solution

Q. Heating of water under atmospheric pressure is an __________ process.

View solution

Q. Van Laar equation deals with the activity co-efficients in

View solution

Q. High __________ is an undesirable property for a good refrigerant.

View solution

Q. Which of the following is not an intensive property ?

View solution

Q. Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

View solution

Q. Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

View solution

Q. The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is

View solution

Q. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

View solution

Q. Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the

View solution

Q. Entropy is a measure of the __________ of a system.

View solution

Q. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

View solution

Q. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

View solution