1. 1/4
2. 4
3. 1/3
4. 3
3
1. Equal to entropy change of the reservoir
2. Equal to entropy change of water
3. Equal to zero
4. Always positive
Always positive
1. Process I is more irreversible than process II
2. Process II is more irreversible than process I
3. Irreversible associated in both the process is equal
4. Both the processes are reversible
Process II is more irreversible than process I
1. 50
2. 87
3. 128
4. 150
87
1. -0.155
2. 0
3. 0.160
4. 0.355
0.160
1. mR 1n (P2 /P1)
2. mR 1n (P1 /P2)
3. mR 1n(P2 /P1) – Q/T1
4. Zero
mR 1n (P1 /P2)
1. 170
2. 187
3. 191
4. 213
187
1. P2 < P21 and P3 > P31
2. P3 < P31 and P4 > P41
3. P2 > P21 and P3 > P31 and P4 < P41
4. P2 > P21, P3 > P31
P2 > P21, P3 > P31
1. Two adiabatic and two constant volume processes
2. Two constant volume and two isothermal processes.
3. One constant pressure, one constant volume and two adiabatic processes.
4. One constant pressure, one constant volume and two isothermal processes
One constant pressure, one constant volume and two adiabatic processes.
1. Only when the vehicle moves at sonic velocity
2. When outlet gases approach zero absolute velocity
3. When the vehicle speed approaches the magnitude of the relative velocity of gases at nozzle exit
4. Only when the relative velocity at nozzle exit is at its maximum
When outlet gases approach zero absolute velocity