On weight basis, air contains following parts of oxygen_________________?
On weight basis, air contains following parts of oxygen_________________?
A. 21
B. 23
C. 25
D. 73
E. 79
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An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is___________________?
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is___________________?A. feasible
B. impossible
C. possible
D. possible, but with lot of sophistications
E. desirableAccording to Avogadro’s Hypothesis ______________________?
According to Avogadro’s Hypothesis ______________________?A. the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature
B. the sum of partial pressure of mixture of two gases is sum of the two
C. product of the gas constant and the molecular weight of an ideal gas is constant
D. gases have two values of specific heat
E. all systems can be regarded as closed systemsWork done is zero for the following process_________________?
Work done is zero for the following process_________________?A. constant volume
B. free expansion
C. throttling
D. all Of the above
E. none of the aboveKinetic theory of gases assumes that the collisions between the molecules are________________?
Kinetic theory of gases assumes that the collisions between the molecules are________________?A. perfectly elastic
B. perfectly inelastic
C. partly elastic
D. partly inelastic
E. partly elastic and partly inelasticWhich of the following cycles has maximum efficiency_____________?
Which of the following cycles has maximum efficiency_____________?A. Rankine
B. Stirling
C. Carnot
D. Brayton
E. JouleWhich of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?
Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?A. enthalpy
B. volume
C. mass
D. entropy
E. specific volume