Pick out the wrong statement.
The principle applied in liquefaction of gases is
Melting of ice exemplifies a/an
Which of the following is not a reversible process ?
In polytropic process (PVn = constant), if n =it means a/an __________ process.
High __________ is an undesirable property for a good refrigerant.
Pick out the wrong statement.
Fugacity is most helpful in
Any substance above its critical temperature exists as
Pick out the wrong statement.
Work done in an adiabatic process between two states depends on the
Which is not a refrigerant ?
In a turbine, the fluid expands almost
Grams of butane (C4H10) formed by the liquefaction oflitres of the gas (measured at (STP) would be
The thermodynamic law, PVy = constant, is not applicable in case of
Partial molar free energy of an element A in solution is same as its
A refrigeration cycle is the same as a __________ cycle,
At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.
Pick out the wrong statement.
Partial molar free energy of an element A in solution is same as its
Compressibility factor of a gas is
A solid metallic block weighing 5 kg has an initial temperature of 500°C.kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1 , K-1 is
dW and dq are not the exact differential, because q and W are
1st law of thermodynamics is nothing but the law of conservation of
The energy of activation of exothermic reaction is
Which of the following is an undesirable characteristics of a refrigerant ?
Which of the following decreases with increase in pressure ?
The number of degree of freedom for an azeotropic mixture of ethanol and water in vapour-liquid equilibrium, is
Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.
The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.
The unity of Planck's constant 'h' in the equation, E = hv is
Free energy change at equilibrium is
Kopp's rule is used to calculate the heat capacity of
__________ explains the equilibrium constant for any chemical reaction.
Which of the following exemplifies an adiabatic process ?
Entropy, which is a measure of the disorder of a system is
Which of the following is not an extensive property ?
"The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances". This is the
In polytropic process (PVn = constant), if n =it means a/an __________ process.
Isentropic process means a constant __________ process.
When a gas is subjected to adiabatic expansion, it gets cooled due to
Joule-Thomson effect i.e., a throttling process is a constant __________ process.
The internal energy of an ideal gas is a function of its __________ only.
Activity co-efficient is a measure of the
Heat is added at constant pressure in an ideal __________ cycle.
Specific/molar Gibbs free energy for a pure substance does not change during
Heat pump
The temperature at which both liquid and gas phases are identical, is called the __________ point.
Critical temperature is defined as the temperature above which a gas will
Enthalpy of a gas depends upon its