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The temperature at state A is 20ºC, that is 293 K. What is the heat (Q) for process D to B, in MJ (MegaJoules)? (Hint: What is the change in thermal energy and work done by the gas for this process?)

p (atm)
5
4
3
2
1
0
A
D
123
B
3 4 5
→ V (m³)

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