An open vessel at 27ºC is heated until three-fifth of the air in it has been expelled. Assuming that the volume of the vessel remains constant, find the temperature to which the vessel has been heated.

An open vessel at 27ºC is heated until three-fifth of the air in it h

1.	An open vessel at 27ºC is heated until three-fifth of the air in it has been expelled. Assuming that the volume of the vessel remains constant, find the temperature to which the vessel has been heated.
Answer» Open vessel is HEATED to 27°C TILL its 3/5th of the air expelled.Consider the vessel volume is constant.We have to calculate the temperature of the vessel to which it should be heated.Let us consider T1 = 27°C (to CONVERT into K) = 27 + 273 = 300 K Consider the amount of air initial 'N1' be nThe amount of air expelled after heating be 'n2' We know that, n1 × T1 = n2 × T2n × 300 = 3n/5 × T2(300n × 5/3n) = T2T2 = 500 KTo convert into degree,T2 = (500 - 273) = 227°CThus, the vessel has to be heated to the temperature of 227°C.