Question

A heat engine works with an ideal diatomic gas in the following cycle: 1. adiabatic expansion from state 1 to state 2. 2. isothermal compression from state 2 to state 3. 3. pressure increase at constant volume from state 3 back to initial state 1. Given are: p1 = 10 bar, p2 = 6.9 bar, T2 = 300 K, V2 = 2.8 dm^3 a) Sketch the cyclic process in a pV-diagram and indicate the different p, V, T values, the direction of the process and the useful work. b) Calculate the individual amounts of heat and work for each process. c) Calculate the efficiency of the engine.

Name: a heat engine works with an ideal diatomic gas in the following cycle 1 adiabatic expansion from state 1 to state 2 2 isothermal compression from state 2 to state 3 3 pressure increase at co 21135
Uploaded: 2022-12-09T13:13:20-08:00
Duration: 3 min 48 s
Channel: Sri K
Description: a heat engine works with an ideal diatomic gas in the following cycle 1 adiabatic expansion from state 1 to state 2 2 isothermal compression from state 2 to state 3 3 pressure increase at co 21135

          A heat engine works with an ideal diatomic gas in the following
cycle:
1. adiabatic expansion from state 1 to state 2.
2. isothermal compression from state 2 to state 3.
3. pressure increase at constant volume from state 3 back to
initial state 1.
Given are: p1 = 10 bar, p2 = 6.9 bar, T2 = 300 K, V2 =
2.8 dm^3
a) Sketch the cyclic process in a pV-diagram and indicate the
different p, V, T values, the direction of the
process and the useful work.
b) Calculate the individual amounts of heat and work for each
process.
c) Calculate the efficiency of the engine.

Added by Eduardo M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

12/09/2022

Step 1

The volume would increase from V1 to V2, and the temperature would decrease from T1 to T2. The work done in this process is the area under the curve, which is positive because the gas is doing work on the surroundings. - The isothermal compression from state 2 to Show more…

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A heat engine works with an ideal diatomic gas in the following cycle: 1. adiabatic expansion from state 1 to state 2. 2. isothermal compression from state 2 to state 3. 3. pressure increase at constant volume from state 3 back to initial state 1. Given are: p1 = 10 bar, p2 = 6.9 bar, T2 = 300 K, V2 = 2.8 dm^3 a) Sketch the cyclic process in a pV-diagram and indicate the different p, V, T values, the direction of the process and the useful work. b) Calculate the individual amounts of heat and work for each process. c) Calculate the efficiency of the engine.