200J of heat energy is added to the gas and The volume of the gas remains consta

Question

200J of heat energy is added to the gas and The volume of the gas remains constant and no work is done.calculate u and state the type of change?

40J of external work is done to compress the gas and The internal energy is increased by 40J calculate the Q and state the type of change?

The internal energy is not changed and 70J of heat is removed from the gas ,calculat W and state the type of change?

The gas expands at constant pressure doing 500J of work and The internal energy decreases by 340J,calculate Q and state the type of change?

Explanation / Answer

a) type of change = isochoric

U = 200J

b) Q = 40 - 40 = 0

adibatic process

c) process = isothermal

W = -70 J

d) process = isobaric

Q = -340 + 500

Q = 160 J

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