Answer to Question #210644 in General Chemistry for amrit

Question #210644

2. Calculate the ΔHoformethanegas,CH4,producedfromgraphiteandhydrogengasaccording

tothefollowingreaction:C(graphite)+2H2(g)CH4(g)

Data given:

a. C(graphite)+O2(g)CO2(g)

ΔHo=-393.5kJ

b.H2(g)+½O2(g)H2O(l)

ΔHo=-285.8kJ

c.CH4(g)+2O2(g)CO2(g)+2H2O(l)

ΔHo=-890.4kJ


1
Expert's answer
2021-06-25T05:44:42-0400

∆H = (-393.5 + -285.8 +-890.4) × 273 × 4.03

= -172.697kJ


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