What is the temperature if 5.0 g of methane (CH₄) in a 100.0 mL container exerts a pressure of 42 atm?

Question

Quizplus · Accepted Answer

The ideal gas law can be used to calculate the temperature:PV = nRTwhere P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.We can rearrange this equation to solve for T:T = PV/nRSubstituting the given values into this equation, we get:T = (42 atm)(0.1 L)/(5.0 g/16.04 g/mol)(0.0821 L*atm/mol*K)= 293 K= 20°CTherefore, the temperature is 20°C, which is closest to choice A, -110°C.

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