All gases above its inversion temperature, in a throttling process will show A cooling effect No change in temperature Either A or C A heating effect TRUE ANSWER : ? YOUR ANSWER : ?
The heat capacities for the ideal gas state depend upon the Temperature Pressure Both A & B Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?
Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the Hot reservoir approaches infinity Either A or B Cold reservoir approaches zero Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature) √(6KT/m) 3KT/m √(3KT/m) √(2KT/m) TRUE ANSWER : ? YOUR ANSWER : ?
Pick out the extensive property out of the following. Specific heat Free energy Refractive index Surface tension TRUE ANSWER : ? YOUR ANSWER : ?
Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas. Same as More than Half Less than TRUE ANSWER : ? YOUR ANSWER : ?
For an irreversible process involving only pressure-volume work (dF)T, p = 0 (dA)T, v >0 (dF)T, p (dF)T, p > 0 TRUE ANSWER : ? YOUR ANSWER : ?
On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)S and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ) (∂P/∂V)S = 1/y(∂P/∂V)T (∂P/∂V)S = [(∂P/∂V)T]Y (∂P/∂V)S = y(∂P/∂V)T (∂P/∂V)S = (∂P/∂V)T TRUE ANSWER : ? YOUR ANSWER : ?
Extensive properties of a thermodynamic system depend upon the __________ of the system. Specific volume Pressure Temperature Mass TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass? DQ = CpdT + Vdp DQ = CvdT + PdV DE = Tds - PdV Tds = dE - PdV TRUE ANSWER : ? YOUR ANSWER : ?