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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A balloon holding 5.00 moles of helium gas absorbs 925 of thermal energy while doing 102 J of work expanding to a larger volume. (a) Find the change in the balloon’s internal energy. (b) Calculate the change in temperature of the gas.

(a)

To determine
The change in balloon’s internal energy after the expansion.

Explanation

Given Info:

Thermal energy absorbed by the gas is 925J .

Work done on the gas when it expands is 102J .

Formula to calculate the change in internal energy is,

ΔU=Q+W

  • Q is the thermal energy absorbed by the gas
  • W is the work done on the gas

Substitute 925J for Q and 102

(b)

To determine
the change in temperature.

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