A gas occupies a volume of 0.500 L at 125 °C and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm?

Question

Quizplus · Accepted Answer

We can use the combined gas law equation, P1V1/T1 = P2V2/T2, where P1 = 0.443 atm, V1 = 0.500 L, and T1 = 125 °C + 273.15 = 398.15 K. We want to solve for T2 when P2 = 0.689 atm and V2 = 0.750 L. Rearranging the equation, we get T2 = (P2V2T1)/(P1V1). Plugging in the values, we get T2 = (0.689 × 0.750 × 398.15)/(0.443 × 0.500) = 378.4 K. Therefore, the mathematical expression that yields the correct temperature at the given conditions is option D.

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