Calorie is a measure of
Calorie is a measure of
A. specific heat
B. quantity of heat
C. thermal capacity
D. entropy
E. work
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If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?
If a gas is heated against a pressure, keeg the volume constant, then work done will be equal to__________________?A. + v
B. – ve
C. zero
D. pressure x volume
E. any where between zero and infinityAn open system is one in which____________________?
An open system is one in which____________________?A. mass does not cross boundaries of the system, though energy may do so
B. neither mass nor energy crosses the boundaries of the system
C. both energy and mass cross the boundaries of the system
D. mass crosses the boundary but not the energy
E. thermodynamic reactions do not occurOn 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. 79An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be________________?
An engine operates between temperatures of 900°Kandr2 and another engine between T2 and 400°K For both to do equal work, value of T2 will be________________?A. 650°K
B. 600°K
C. 625°K
D. 700°K
E. 750°KThe ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?
The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?A. increase
B. decrease
C. remain unchanged
D. increase/decrease depending on ap-plication
E. unpredictableWhich of the following cycles has maximum efficiency_____________?
Which of the following cycles has maximum efficiency_____________?A. Rankine
B. Stirling
C. Carnot
D. Brayton
E. Joule