Ask a New Question
Menu

Consider the reaction N2+O2-->2NO with Delta H=43.2kcal.

When 50.0g of N2 react with an excess of oxygen, how much heat is generated/consumed?

I know that this is an endothermic reaction b/c of the + delta H, is there some sort of formula to use here? I have no idea where to start...can someone walk me through this? I'm lost!!!

1 answer

Yes, it's endothermic and you're right for the reason, too.
The equation tells you that 43.2 kcal is consumed by 1 mol N2 (28g). All you need to do is proportion that out for 50 g.
43.2 kcal x (50/28) = ?
Similar Questions
  1. MgCO2(s)-> MgO9(s) + CO2(g)A. what is delta H reaction when 3.35 mol of CO2 react with excess MgO? B. What is delta H reaction
    1. answers icon 1 answer
  2. divide eq 2 by 2:2H(g)........> H2(g) delta H= -104.2Kcal H(g) ........> 1/2 H2(g) delta H= -72.1Kcal Now reverse the reaction:
    1. answers icon 1 answer
    1. answers icon 0 answers
  4. For the reactionAl(s) + 3 HCl(aq)->AlCl3(s) +3/2 H2(g) it was observed that when 4.00g of aluminum reacted with excess HCl,
    1. answers icon 4 answers
more similar questions