Question

A.) A gas confined by a piston expands isobarically at 30 kPa. When 24,000 joules of...

A.) A gas confined by a piston expands isobarically at 30 kPa. When 24,000 joules of heat is absorbed by the system, its volume increases from 0.14 m3 to 0.4 m3. What work is done on the system and what is the change in internal energy?

Work Done by the System = Joules

Internal Energy Change = Joules

B.) The volume of a gas decreases from 7 to 4 liters under a constant pressure of one atmosphere.

Is the work done by the gas or on the gas?

What work is done?

Work Done = Joules

If the internal energy inceases by 280, what was the net heat exchange?

Heat Change = Joules

B.)A 45 percent efficient engine loses 390 joules of heat during each cycle. What work is done and how much heat is absorbed in each cycle?

Work Done =  Joules

Heat Absorbed =  Joules

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