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

Question

Quizplus · Accepted Answer

The correct answer is A because the temperature change is the same for both the mercury and the glass, so the volume change of the mercury will be equal to the volume change of the glass.

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