Three isotherms are plotted for an ideal gas at temperatures on a vs graph. If the curves move outwa — States of Matter and Gaseous State Chemistry Question
Question
Three isotherms are plotted for an ideal gas at temperatures $T_1, T_2, T_3$ on a $P$ vs $V$ graph. If the curves move outwards from the origin in the order $I, II, III$, the correct temperature order is:
Answer: B
💡 Solution & Explanation
For a given volume, $P \propto T$. The isotherm furthest from the origin has the highest pressure for a constant volume, meaning it corresponds to the highest temperature. Thus $T_1 < T_2 < T_3$.
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