# Problem: You may want to reference(Pages 166 - 172)Section 5.2 while completing this problem.Calculate the change in internal energy of the following system: A balloon is cooled by removing 0.656 kJ of heat. It shrinks on cooling, and the atmosphere does 386 J of work on the balloon.

###### FREE Expert Solution

Change in Internal Energy:

$\overline{){\mathbf{∆}}{\mathbf{E}}{\mathbf{=}}{\mathbf{q}}{\mathbf{+}}{\mathbf{w}}}$

• q → (-) → heat is removed
• w → (+) → work is done by atmosphere (shrinks)

$\mathbf{∆}\mathbf{E}\mathbf{=}\mathbf{-}\mathbf{q}\mathbf{+}\mathbf{w}$

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###### Problem Details

You may want to reference(Pages 166 - 172)Section 5.2 while completing this problem.

Calculate the change in internal energy of the following system: A balloon is cooled by removing 0.656 kJ of heat. It shrinks on cooling, and the atmosphere does 386 J of work on the balloon.