Consider two cylinders of gas identical in all respects exceptthat one contains
ID: 1678106 • Letter: C
Question
Consider two cylinders of gas identical in all respects exceptthat one contains oxygen (O2) and the other He. Both hold the samevolume of gas at STP and are closed by a movable piston at one end.Both gases are now compressed adiabatically to one-third theiroriginal volume. Which gas will show the greater pressureincrease? A)It's impossible to tell from the information given.B)the oxygen (O2)
C)Neither; both will show the same increase.
D)the He
6. What is the Carnot efficiency of an engine which operatesbetween 450 K and 310 K? A)31%
B)41%
C)69%
D)59%
7. What is the change in entropy when 50.0 g of ice melt at 0.00Celsius? A)-14.6 cal/K
B)14.6 Cal/K
C)-4.0 kcal/K
D)4.0 kcal/K
An ideal gas undergoes an adiabatic process while doing 25 Jof work. What is the change in internal energy? A)25 J
B)none of the above
C)zero
D)-25 Consider two cylinders of gas identical in all respects exceptthat one contains oxygen (O2) and the other He. Both hold the samevolume of gas at STP and are closed by a movable piston at one end.Both gases are now compressed adiabatically to one-third theiroriginal volume. Which gas will show the greater pressureincrease? A)It's impossible to tell from the information given.
B)the oxygen (O2)
C)Neither; both will show the same increase.
D)the He
Consider two cylinders of gas identical in all respects exceptthat one contains oxygen (O2) and the other He. Both hold the samevolume of gas at STP and are closed by a movable piston at one end.Both gases are now compressed adiabatically to one-third theiroriginal volume. Which gas will show the greater pressureincrease? 6. What is the Carnot efficiency of an engine which operatesbetween 450 K and 310 K? A)31%
B)41%
C)69%
D)59%
6. What is the Carnot efficiency of an engine which operatesbetween 450 K and 310 K? A)31%
B)41%
C)69%
D)59%
What is the Carnot efficiency of an engine which operatesbetween 450 K and 310 K? 7. 7. What is the change in entropy when 50.0 g of ice melt at 0.00Celsius? A)-14.6 cal/K
B)14.6 Cal/K
C)-4.0 kcal/K
D)4.0 kcal/K
What is the change in entropy when 50.0 g of ice melt at 0.00Celsius? A)-14.6 cal/K
B)14.6 Cal/K
C)-4.0 kcal/K
D)4.0 kcal/K
What is the change in entropy when 50.0 g of ice melt at 0.00Celsius? An ideal gas undergoes an adiabatic process while doing 25 Jof work. What is the change in internal energy? A)25 J
B)none of the above
C)zero
D)-25 An ideal gas undergoes an adiabatic process while doing 25 Jof work. What is the change in internal energy?
Explanation / Answer
For adiabatic process P’V ‘ r = PVr
Where r = ratio of specific heats
Final pressure P ‘ = P ( V/ V ‘ )r