Equation CP-Cv = R is
A.true for an ideal gas only
B.true for any real gas
C.true for ideal as well as real gases
D.not true for any gas
Category: Chemical Thermodynamics Mcqs
The SI unit of Cp is
A.J/kg.K
B.J/kg
C.W/kg.K
D.J/m3.K
Which of the following has miximum specific heats ratio
A.Argon
B.Carbon dioxide
C.Oxygen
D.Hydrogen
Specific heat of acqueous solutions in general
A.increases with increasing concentration
B.decreases with increasing concentration
C.remains unaffected with change in concentration of solute
Boyles law for an ideal gas deals with the relationship between
A.mass and volume at constant temperature
B.pressure and volume at constant temperature
C.volume and temperature at constant pressure
D.pressure and temperature at constant volume
The compressibility factor (Z) of a gas is defined as
A.the ration of the actual volume of the gas to the volume predicted by ideal-gas law
B.the ratio of the volume predicted by ideal-gas law to the actual volume of the gas
C.the difference between the actual volume of the gas and the volume predicted by ideal-gas law
D.none of the above
For an ideal monoatomic gas the specific heats ratio is
A.1.4
B.1.67
C.1.33
D.1
A substance above its critical temperature exists as
A.solid
B.liquid
C.gas
D.saturated vapours
Which one of the following plots for a gas at about room temperature will suggest an absolute zero temperature if extrapolated suitably?
A.Pressure against 1/volume (temperature constant)
B.Pressure against volume (temperature constant)
C.Volume against temperature (pressure constant)
D.Volume against 1/pressure (temperature constant)
The mathematical expression for the first law of thermodynamics for a steady-state flow processes is
A.? H = Q + Ws
B.?H = Q-Ws
C.?U = Q-Ws
D.?U = Q + Ws
