Asked by Anonymous

Find (triangle)H for N2H4 + CH4O > C2HO + N2 + 3H2

2NH3 > N2H4 + H2 22.5 kJ
2NH3 > N2 + 3H2 57.5 kJ
CH20 + H2 > CH4O 81.2 kJ

Answers

Answered by DrBob222
reverse equation 1 and add to equation 2 and add to the reverse of equation 3.
When you reverse and equation change the sign of dH.
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