A porcelain crucible is filled with 1kg of mercury at room temperature (20^(@)C). The crucible is then placed inside a furnance, kept there for sufficient time and finally removed. It is found that it contains only 0.8Kg of mercury. Calculate the temperature of the furnace. (Average cubical expansivity of mercury =18.2xx10^(-5)K^(-1) and that of porcelain=2xx10^(-5)K^(-1))

A porcelain crucible is filled with 1kg of mercury at room temperature

1.	A porcelain crucible is filled with 1kg of mercury at room temperature (20^(@)C). The crucible is then placed inside a furnance, kept there for sufficient time and finally removed. It is found that it contains only 0.8Kg of mercury. Calculate the temperature of the furnace. (Average cubical expansivity of mercury =18.2xx10^(-5)K^(-1) and that of porcelain=2xx10^(-5)K^(-1))
Answer» ANSWER :`1523^(@)C`