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A spring-loaded piston/cylinder contains 1.5 kg of air at
Chapter 3, Problem 149HP(choose chapter or problem)
Problem 149HP
A spring-loaded piston/cylinder contains 1.5 kg of air at 27°C and 160 kPa. It is now heated to 900K in a process wherein the pressure is linear in volume to a final volume of twice the initial volume. Plot the process in a P–v diagram and find the work and heat transfer.
Questions & Answers
QUESTION:
Problem 149HP
A spring-loaded piston/cylinder contains 1.5 kg of air at 27°C and 160 kPa. It is now heated to 900K in a process wherein the pressure is linear in volume to a final volume of twice the initial volume. Plot the process in a P–v diagram and find the work and heat transfer.
ANSWER:
Solution 149HP
Step 1 of 8
Here we have to calculate the work done and heat transfer during the process of given spring loaded piston. Also,w e need to draw the p-v graph.
Let the initial volume be , the final volume is given to be twice of initial volume
.
Given data,
Mass,
Initial temperature,
Initial pressure,
Final temperature,
Constant,
To find,
Work done,
Heat transfer,