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In this lesson, we will learn how to calculate the net heating of and net work done by ideal gases that change pressure, volume, and temperature.
A gas with a mass of 0.125 kg
is contained in a rigid container
with a volume of 2.5 m3. The gas is heated, increasing its
temperature by 35 K and also increasing its pressure, as shown in the diagram.
Calculate the change in the internal energy of the gas due to its heating.
Use a value of 1.75 kJ/kg
for the specific heat capacity of a constant volume of the gas.
Assume the heating of the container is negligible. Answer to three significant figures.
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