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Grade: 11
        
The heat of combustion of ethylene (C2H4) is -1420kjmol-1 .The volume of C2Haat NTP that would evolve 355kj on combustion is ?
 
one year ago

Answers : (1)

Shweta Ahire
44 Points
							
Heat of combustion of ethylene is
-1420KJ for 1 mole 
Then for -355KJ  for how many moles, this is we have to find
-1420        1
-355           x moles
 
X = -355/-1420
So moles of C2H4 =0.25
So volume at NTP = 22.4 × 0.25   =   5.6 litre
 
 
one year ago
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