Thermodynamics

1. 1[Date]
I. Solve the following problems. Write your final answers in four (4) decimal places. In your complete solutions,
enclose your final answers with correct units. One page per problem.
1. Carbon dioxide flows through a pipe at a given state. The volume and mass flow rates and the
density of 𝐶𝑂2 at the given state and the volume flow rate at the exit of the pipe are to be
determined.
2. Two rigid tanks that contain hydrogen at two differentstates are connectedto eachother. Now a
valve is opened,and the two gases are allowed to mix while achievingthermal equilibrium with the
surroundings. The final pressure in the tanks is to be determined.
3. A gas cylinder is compressed to a specific volume in a process during the pressure changeslinearly
with volume. The boundary work done during this process is to be determinedby plotting the
process on a PV diagram and also by integration.
4. A gas in a cylinder is heated and is allowed to expand to a specifiedpressure in a process during
which the pressure changes linearly with the volume. The boundary work done during this process is
to be determined.
NAME:
COURSE & YR LEVEL:
SCORE TIME: DAYS:
DATE:
P=600 kPa
2

2. 2[Date]
1. Carbon dioxide flows through a pipe at a given state. The volume and mass flow rates and the density of 𝐶𝑂2
at the givenstate and the volume flow rate at the exit of the pipe are to be determined.
NAME:
COURSE & YR LEVEL:
SCORE TIME: DAYS:
DATE:

3. 3[Date]
2. Two rigid tanks that contain hydrogen at two differentstates are connectedto eachother. Now a valve is
opened,and the two gases are allowed to mix while achieving thermal equilibrium with the surroundings. The
final pressure in the tanks is to be determined.
NAME:
COURSE & YR LEVEL:
SCORE TIME: DAYS:
DATE:

4. 4[Date]
3. A gas cylinder is compressed to a specific volume in a process during the pressure changeslinearly with volume.
The boundary work done during this process is to be determined by plotting the process on a PV diagram and
also by integration.
NAME:
COURSE & YR LEVEL:
SCORE TIME: DAYS:
DATE:

5. 5[Date]
4. A gas in a cylinder is heated and is allowed to expand to a specifiedpressure in a process during which the
pressure changeslinearly with the volume. The boundary work done during this process is to be determined.
NAME:
COURSE & YR LEVEL:
SCORE TIME: DAYS:
DATE: