An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls back to 101 kPa at 100°C.

Question

An ideal gas is sealed within a container at a temperature of 17°C and a pressure of 101 kPa. The container is heated until the temperature of the gas reaches100°C. A valve in the container is then opened to allow gas to escape until the pressure falls back to 101 kPa at 100°C. 
a) Calculate the pressure in the gas just before the valve is opened. 
b) Calculate the fraction of the initial mass of gas that was lost as a result of opening the valve

bobpursley · Answer

a. P2=T2P1/T1 temps in Kelvins. b. n1=P1V1/RT1 n2=P2V2/RT2 n2/n2=T1/T2 in kelvins that is the fraction that remains, so fraction lost is 1- that.

Wudinesh · Answer

An ideal gas is sealed in a rigid container at initial temperature of 17 degree and pressure 100kap when it is heated it's temperature reaches 127 degree, the valve is operated. To allow. Gas to escape until the pressure falls back to 100kap at 127 degree. Calculate

mekdes · Answer

are correct but what about the rest question.?