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

question 22

Multiple Choice

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.The coefficients of volume expansion of mercury and glass are 18 × 10^-5 K^-1 and 2.0 × 10^-5 K^-1,respectively.The temperature at which this occurs,in °C,is closest to:

• A)122
• B)112
• C)102
• D)110
• E)132

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