Lab · Thermal Engineering
Thermodynamic Process Lab
One closed mass of ideal gas, one process, two states. Choose the process, fix the end state, and read the P–v path, both states and the first-law balance from the same solution.
State 1 and gas
Pressure is absolute (from vacuum) and temperature is absolute (kelvin). No atmospheric pressure is added and no Celsius value is converted behind the scenes.
Process
W (by the gas)
-176.75 kJ
Q (into the gas)
-44.188 kJ
ΔU
132.57 kJ
P–v diagram
Open circle: State 1. Filled circle: State 2. The arrow shows the direction of the process. The area under the path is the boundary work per unit mass.