Imperfect gases are those
A.which contain impurities
B.which do not obey Charles and Boyles law
C.whose molecules are not spherical
D.whose molecules cannot be regarded as point masses
Category: Chemical Thermodynamics Mcqs
Above atmospheric pressure the specific heat of a gas at constant pressure (Cp)
A.increases with increase in pressure
B.decreases with increase in pressure
C.remains unaffected with change in pressure
D.increases first and then decreases with increase in pressure
Specific volume of a gas is
A.the reciprocal of its density
B.equal to its density
C.directly proportional to pressure
D.the volume of gas at S.T.P.
For a closed system the correct mathematical expression for the first law of thermodynamics is
A.dU = ?dQ + dW
B.dU = dQ + dW
C.dU = dQ-dW
D.dU = Q + W
Which of the following is an example of a closed system
A.Scooter engine
B.Liquid cooling system of an automobile
C.Boiler in steam power plant
D.Air compressor
A system in which there may exchange energy but not mass is known as
A.open system
B.closed system
C.isolated system
D.insulated system
Which of the following nethods will enable the volume of an ideal gas to be made four times greater? Use absolute temperature
A.Double the temperature double the pressure
B.Halve the temperature double the pressure
C.Quarter the pressure at constant temperature
D.Quarter the temperature at constant pressure
The unit of power is
A.W only
B.J/s only
C.J/s and W both
D.J
