If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?
(A) Process must be isobaric
(B) Temperature must decrease
(C) Process must be adiabatic
(D) Both
The first law of thermodynamics is a statement of conservation of_____________________?
(A) Heat
(B) Momentum
(C) Energy
(D) Work
First law of thermodynamics deals with the ___________________?
(A) Direction of energy transfer
(B) Reversible processes only
(C) Irreversible processes only
(D) None of these
The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?
(A) Less
(B) More
(C) Same
(D) Dependent on climatic conditions
For a spontaneous process, free energy__________________?
(A) Is zero
(B) Increases
(C) Decreases whereas the entropy increases
(D) And entropy both decrease
The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?
(A) Temperature
(B) Pressure
(C) Composition
(D) All (A),
In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible ____________ process?
(A) Isometric
(B) Polytropic
(C) Isentropic
(D) Isobaric
Water on heating from 1 to 4°C___________________?
(A) Contracts
(B) Expands
(C) Has same volume
(D) May contract or expand
In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible ______________ process?
(A) Isothermal
(B) Adiabatic
(C) Isentropic
(D) Polytropic
The kinetic energy of gas molecule is zero at_____________________?
(A) 0°C
(B) 273°C
(C) 100°C
(D) -273°C