19.9 L
Step-by-step explanation:
Given:
n = 21 mole, P = 78 atm , T = 900k ,
V = ? , R = 0.0821
Solution:
Ideal gas equation, PV = nRT
V = nRT / P
= 21 × 0.0821 × 900/ 78
= 19.89 L
9.0m questions
11.7m answers