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Heat of Formation

You and a fri...

Question

You and a friend each synthesize a compound with the formula $X e C l_{2} F_{2}$ . Your compound is a liquid and your friend's compound is a gas (at the same conditions of temperature and pressure). Explain how the two compounds with the same formulas can exist in different phases at the same conditions of pressure and temperature.

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Solution

$X e C l_{2} F_{2}$ square planar

(Refer to Image 1) Polar molecule liquid
(Refer to Image 2) Non-polar molecule gas

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