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hess's law Calculate H for this reaction: CH4(g)+NH3(g)HCN(g)+3H2(g) given: N2(g)+3H2(g)2NH3(g)C(s)+2H2(g)CH4(g)H2(g)+2C(s)+N2(g)2HCN(g))H=91.8kJ/moleH=74.9kJ/moleH=+270.3kJ/mole
hess's law 
Calculate H for this reaction: CH4(g)+NH3(g)HCN(g)+3H2(g) given: N2(g)+3H2(g)2NH3(g)C(s)+2H2(g)CH4(g)H2(g)+2C(s)+N2(g)2HCN(g))H=91.8kJ/moleH=74.9kJ/moleH=+270.3kJ/mole Step by Step Solution
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Modern Chemistry
Authors: RINEHART AND WINSTON HOLT
Student Edition 2007
9780030922046, 0030922046
