
(a)
The volume of gas at A.
(a)

Answer to Problem 78P
The volume at A is
Explanation of Solution
Given:
The pressure at A is
The temperature at A is
Formula used:
The expression for volume at A is given by,
Calculation:
The volume at A is calculated as,
Conclusion:
Therefore, the volume at A is
(b)
The volume and temperature of gas at B.
(b)

Answer to Problem 78P
The volume and temperature at B are
Explanation of Solution
Formula used:
The expression for volume at B is given by,
The expression for temperature at B is given by,
Calculation:
The volume at B is calculated as,
The temperature at B is calculated as,
Conclusion:
Therefore, the volume and temperature at B are
(c)
The temperature of gas at C.
(c)

Answer to Problem 78P
The temperature at C is
Explanation of Solution
Formula used:
The expression for temperature at C as process is isothermal given by,
Calculation:
The temperature at C is calculated as,
Conclusion:
Therefore, the temperature at C is
(d)
The volume of gas at C.
(d)

Answer to Problem 78P
The volume at C is
Explanation of Solution
Formula used:
The expression for volume at C as process is given by,
Calculation:
The volume at C is calculated as,
Conclusion:
Therefore, the volume at C is
(e)
The work done by gas in each segment of cycle.
(e)

Answer to Problem 78P
The work done in process AB, BC and CA are
Explanation of Solution
Formula used:
The work done in process AB is given by,
The expression for work done in process BC is given by,
The expression for work done in process CA is given by,
Calculation:
The work done in process AB is calculated as,
The work done in process BC is calculated as,
The work done in process CA is calculated as,
Conclusion:
Therefore, the work done in process AB, BC and CA are
(f)
The heat absorbed in each segment of cycle.
(f)

Answer to Problem 78P
The heat absorbed in process AB, BC and CA are
Explanation of Solution
Formula used:
The expression for heat absorbed in process AB is given by,
The expression for heat absorbed in process CA is given by,
Calculation:
The heat absorbed in process AB is calculated as,
The heat absorbed in process BC is 0 because the process is adiabatic.
The heat absorbed in process CA is calculated as,
Conclusion:
Therefore, the heat absorbed in process AB, BC and CA are
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Chapter 19 Solutions
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