Question

 

21. A 5 L flask at 25 °C contains 0.2 mol of Cl2. What is the pressure in the flask?

Answer 1

$n=0.2 mol$

$T=273+25=298K$

Applying PV=nRT

$P\times5=0.2\times0.082\times298$

$P=0.977\ atm$

​