Choose the condition that must be specified in order to liquify CO₂ (triple point for CO₂ is - 57°C and 5.2 atm). Temperature must be kept above - 57°C Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C Pressure must be kept below 5.2 atm TRUE ANSWER : ? YOUR ANSWER : ?
Compressibility factor for almost all the gases are approximately same at the same None of these Critical pressure and critical temperature Reduced pressure and reduced temperature Pressure and temperature TRUE ANSWER : ? YOUR ANSWER : ?
Heat pump Accomplishes only space cooling in summer Works on Carnot cycle Accomplishes both A and B Accomplishes only space heating in winter TRUE ANSWER : ? YOUR ANSWER : ?
The total change in the enthalpy of a system is independent of the None of these State of combination and aggregation in the beginning and at the end of the reaction Pressure and temperature Number of intermediate chemical reactions involved TRUE ANSWER : ? YOUR ANSWER : ?
The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law ) V₁/V₂ V₁.V₂ V₁-V₂ V₂/V₁ TRUE ANSWER : ? YOUR ANSWER : ?
As the time is passing, entropy of the universe Remains constant Data insufficient, can't be predicted Is increasing Is decreasing TRUE ANSWER : ? YOUR ANSWER : ?
Heating of water under atmospheric pressure is an __________ process. Isothermal Isobaric Adiabatic Isochoric TRUE ANSWER : ? YOUR ANSWER : ?
For an incompressible fluid, the __________ is a function of both pressure as well as temperature. Internal energy Entropy All of these Enthalpy TRUE ANSWER : ? YOUR ANSWER : ?
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only. Specific heat Volume Temperature Pressure TRUE ANSWER : ? YOUR ANSWER : ?
For a constant volume process __________ by the system is used only to increase the internal energy. Heat absorbed Both A & B Work done Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?