A fixed amount of nitrogen gas (1 mole) is ta | vedclass

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(C) The compressibility factor $Z$ is defined as $Z = PV/RT$. For an ideal gas,$Z = 1$ at all pressures and temperatures. Real gases deviate from idea

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$2$

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(C) The compressibility factor $Z$ is defined as $Z = PV/RT$. For an ideal gas,$Z = 1$ at all pressures and temperatures. Real gases deviate from ideal behavior at high pressures. For nitrogen gas,as the temperature increases,the gas behaves more like an ideal gas. At a given high pressure,the deviation from $Z = 1$ decreases as the temperature increases. Looking at the graph,curve $1$ represents the ideal gas behavior $(Z = 1)$. Curves $2, 3,$ and $4$ represent real gas behavior at different temperatures. Since higher temperatures lead to behavior closer to ideal,the curve that stays closest to the ideal line $(Z = 1)$ represents the highest temperature. Therefore,curve $2$ represents the highest temperature among the real gas curves shown,as it shows the least deviation from the ideal behavior.

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