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WorksheetsThermodynamics Processes
Total questions: 9
Worksheet time: 6mins
Which of the following is always a characteristic of an adiabatic process?
No heat flows into or out of the system (Q = 0).
The temperature does not change (ΔT = 0).
No work is done on or by the system (W = 0).
The internal energy does not change (ΔU = 0).
The pressure does not change (ΔP = 0).
Which of the following will occur if the average speed of the gas molecules in a closed rigid container is increased?
The pressure of the gas will increase.
The density of the gas will increase.
The density of the gas will decrease.
The pressure of the gas will decrease.
The temperature of the gas will decrease.
For the process Y→Z, Q is greater than zero and
W=0 and Δ U<0
W=0 and Δ U>0
W>0 and Δ U>0
W >0 and Δ U=0
W<0 and Δ U=0
A gas is taken from state i to state f along the two-step process shown in the PV diagram above.
How much work is done on the gas during the process described?
0 J
2,000 J
4,000 J
8,000 J
16,000 J
The process in which the internal energy of the system remains constant is :
Adiabatic
Isobaric
Isothermal
Isochoric
An adiabatic process occurs at constant
Temperature
pressure
heat
none of these
The following graph depicts the pressure versus volume for an ideal gas undergoing a thermodynamic cycle. Between what points is the process isobaric?
a to b
b to c
a to c
c to a
What is the 1st law of thermodynamics of an isobaric process involving an ideal gas?
Q = ΔU + W
-W = ΔU
Q = W
Q = ΔU
What is the 1st law of thermodynamics of an isothermal process involving an ideal gas?
Q = ΔU + W
-W = ΔU
Q = W
Q = ΔU
