Work done in a free expansion process is___________________?
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
A. raising its temperature
B. raising its pressure
C. raising its volume
D. raising its temperature and doing external work
E. doing external work
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 °K
A. 80°C
B. 0°C
C. 40°C
D. 20°C
E. 60°C
A. a reversible cycle (ft) an irreversible cycle
C. a semi-reversible cycle
D. a quasi static cycle
E. an adiabatic irreversible cycle
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. first decreases and then increases
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