Question

cati moli de hidrogen se gasesc in 40 l de hidrogen aflat la 127°C si 40 atm

Answer 1

pV = nRT
n = pV/RT
n = 40*40/0.082*(127+273) 
n = 48. 78 moli H2

Answer 2

V=40 L H2
T=273+t°C=273+127=400K
p=40 atm

Ecuatia de stare a gazelor: 

pV=nRT==>n=pV/RT=40*40/0.082*400=1600/32.8=48.78 moli H2