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$\bullet$ A gas in a cylinder is held at a constant pressure of $2.30 \times$ $10^{5}$ Pa and is cooled and compressed from 1.70 $\mathrm{m}^{3}$ to 1.20 $\mathrm{m}^{3} .$ The internal energy of the gas decreases by $1.40 \times 10^{5} \mathrm{J}.$(a) Find the work done by the gas. (b) Find the amount of the heat that flowed into or out of the gas, and state the direction (inward or outward) of the flow.

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Physics 101 Mechanics

Chapter 15

Thermal Properties of Matter

Temperature and Heat

The First Law of Thermodynamics

The Second Law of Thermodynamics

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