Work done in a free expansion process is___________________?
Work done in a free expansion process is___________________?
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
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Addition of heat at constant pressure to a gas results in________________?
Addition of heat at constant pressure to a gas results in________________?A. raising its temperature
B. raising its pressure
C. raising its volume
D. raising its temperature and doing external work
E. doing external workAbsolute zero pressure will occur _____________________?
Absolute zero pressure will occur _____________________?A. at sea level
B. at the center of the earth
C. when molecular momentum of the system becomes zero
D. under vacuum conditions
E. at a temperature of – 273 °KIf a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be__________________?
If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be__________________?A. 80°C
B. 0°C
C. 40°C
D. 20°C
E. 60°CCarnot cycle is__________________?
Carnot cycle is__________________?A. a reversible cycle (ft) an irreversible cycle
C. a semi-reversible cycle
D. a quasi static cycle
E. an adiabatic irreversible cycleThe efficiency of Diesei cycle with decrease in cut off_________________?
The efficiency of Diesei cycle with decrease in cut off_________________?A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. first decreases and then increasesBrayton cycle consists’ of following four processes____________________?
Brayton cycle consists’ of following four processes____________________?A. two isothermals and two isentropics
B. two isentropics and two constant volumes
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pres-sures
E. none of the above