In the reaction, H2 +I2 ⇌ 2HI, addition of an inert gas will___________________?
(A) Increase the partial pressure of H2
(B) Increase the partial pressure of I2
(C) Increase the total pressure and hence shift the equilibrium towards the right
(D) Not affect the equilibrium conditions
One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one ________________?
(A) Hour
(B) Day
(C) Minute
(D) Second
Specific/molar Gibbs free energy for a pure substance does not change during________________?
(A) Sublimation
(B) Vaporisation
(C) Melting
(D) Either A,
The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?
(A) R loge 4
(B) R log10 4
(C) Cv log10 4
(D) Cv loge 4
The unit of equilibrium constant of a chemical reaction is the same as that of__________________?
(A) Molar concentration
(B) Temperature
(C) Internal energy
(D) None of these
A liquid under pressure greater than its vapour pressure for the temperature involved is called a _____________ liquid?
(A) Sub-cooled
(B) Saturated
(C) Non-solidifiable
(D) None of these
The first law of thermodynamics is a restatement of the law of conservation of_________________?
(A) Mass
(B) Energy
(C) Momentum
(D) None of these
________________ decreases during adiabatic throttling of a perfect gas?
(A) Entropy
(B) Temperature
(C) Enthalpy
(D) Pressure
Change of state namely evaporation condensation, freezing and melting is an _______________ process?
(A) Isothermal
(B) Adiabatic
(C) Isobaric
(D) Isochoric
Co-efficient of Performance (COP) of a refrigerator is the ratio of the ______________________?
(A) Work required to refrigeration obtained
(B) Refrigeration obtained to the work required
(C) Lower to higher temperature
(D) Higher to lower temperature