A Glass Flask Has a Volume of 500 ML $20 ^ { \circ } \mathrm { C }$

Multiple Choice

A glass flask has a volume of 500 mL at a temperature of $20 ^ { \circ } \mathrm { C }$ The flask contains 492 mL of mercury at an equilibrium temperature of $20 ^ { \circ } \mathrm { C }$ 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 $18 \times 10 ^ { - 5 } \mathrm {~K} ^ { - 1 }$ (mercury) and $2.0 \times 10 ^ { - 5 } \mathrm {~K} ^ { - 1 } \text { (glass) }$

A) $110 ^ { \circ } \mathrm { C }$
B) $100 ^ { \circ } \mathrm { C }$
C) $140 ^ { \circ } \mathrm { C }$
D) $130 ^ { \circ } \mathrm { C }$
E) $120 ^ { \circ } \mathrm { C }$