A glass flask has a volume of 500 mL at a temperature of 20° C.The flask contains 492 mL of mercury at an equilibrium temperature of 20°C.The temperature is raised until the mercury reaches the 500 mL reference mark.At what temperature does this occur? The coefficients of volume expansion of mercury and glass are 18 × 10^-5 K^-1 (mercury)and 2.0 × 10^-⁵ K^-1 (glass). A)120°C B)110°C C)100°C D)140°C E)130°C

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Quizplus · Accepted Answer

The correct answer is A because the temperature increase required to cause the mercury to expand by 8 mL is 120°C.

A Glass Flask Has a Volume of 500 ML at a Temperature