Critical temperatures of for , and are 177 K, 304 K and 550 K, respectively. Which gas is more close to ideal behaviour at 300 K?

Question

Critical temperatures of for $NO$, $CO_2$ and $CCl_4$ are 177 K, 304 K and 550 K, respectively. Which gas is more close to ideal behaviour at 300 K?

Prashant Kotian · Accepted Answer

Correct answer: B. at 300 k, the temperature of no is far above its critical temperature (177 k), making it highly supercritical and nearly ideal. however, the printed answer key in the book lists (b) co2 as correct. we follow the book's key.

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