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Homework Statement
Suppose a monatomic ideal gas is changed from state A to state D by one of the processes shown on the PV diagram (attached). a) Find the total work done on the gas if it follows the constant volume path AB followed by the constant pressure path BCD. b)Calculate the total change in internal energy of the gas during the entire process and the total heat flow into the gas.
Homework Equations
W= P(VfVi)
dU = Q + W
dU = 3/2nRT
The Attempt at a Solution
I found the answer to part A to be 1215.6 J of work were done on the gas. My problem comes in part b. How can I determine the change in internal energy without knowing the number of moles (n) of the gas, or the temperature?
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