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## Homework Statement

There's .1 mole of an ideal gas trapped in a cylinder with a movable piston.

If Pi= Pf= 5000Pa, Vi= .04 m^3, Vf= .08m^3, Q=500J,,,Find W, change in (U), Ti and Tf.

## Homework Equations

change in U = Q+W

W= -p change in V

## The Attempt at a Solution

W= 200J

change in U = 700J

Ti=

Tf= i don't know how to get Ti and Tf... I am not sure whether 200J and 700J are right either..

PLease help me!!

Thank you!