Question
Heat, Work, and Internal EnergyAs a gas cools, it is compressed from 2.50 L to 1.25 L under a constant pressure of $1.01 \times 10^{5}$ Pa. Calculate the work (in J) required to compress the gas.
Step 1
We know that 1 Pascal is equal to $1 \times 10^{-5}$ bar. So, the pressure in bar is $1.01 \times 10^{5} \times 1 \times 10^{-5} = 1.01$ bar. Show more…
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As a gas cools, it is compressed from $2.50 \mathrm{L}$ to $1.25 \mathrm{L}$ under a constant pressure of $1.01 \times 10^{5} \mathrm{Pa} .$ Calculate the work (in $\mathrm{J})$ required to compress the gas.
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The work done to compress a gas is $112 \mathrm{~J}$. As a result, 51 J of heat is given off to the surroundings. Calculate the change in energy of the gas.
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Introduction to Thermodynamics
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