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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 chemical reaction transfers 1250 J of thermal energy into an ideal gas while the system expands by 2.00 × 10−2 m3 at a constant pressure of 1.50 × 105 Pa. Find the change in the internal energy.

To determine

The change in internal energy.

Explanation

Given Info:

The thermal energy transferred to ideal gas is 1250J.

Change in volume of gas is 2×102m3

The constant pressure of the gas is 1.5×105Pa.

Formula to calculate the internal energy,

ΔU=Q+W      (1)

  • Q is the energy transferred to the gas
  • W is the work done on the gas

Since,

W=PΔV

  • P is the pressure of gas
  • ΔV is the change in volume

Substitute 1.5×105Pa for P and 2×102m3 for ΔV to get the work done,

W=(1

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