Stoichiometry
The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately

0.07
0.09
0.11
0.13

ANSWER DOWNLOAD EXAMIANS APP

Stoichiometry
An ideal gas can be liquified, because

Its critical temperature is more than 0°C
Its molecular size is very small
It gets solidified directly without becoming liquid
Forces operative between its molecules are negligible

ANSWER DOWNLOAD EXAMIANS APP