Problem: Calculate ΔH for the following reaction using the given enthalpies of formation. 2NO(g) + 5O2(g) → 2NO2(g) ΔHfNO(g) = 90.25 kJ mol-1 ΔHfNO2(g) = 33.18 kj mol-1 a. +57.07 kJ b. -57.07 kJ c. +114.14 kJ d. -114.14 kJ e. +66.36 kJ

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Calculate ΔH for the following reaction using the given enthalpies of formation.

2NO(g) + 5O2(g) → 2NO2(g)

ΔHfNO(g) = 90.25 kJ mol-1
ΔHfNO2(g) = 33.18 kj mol-1

a. +57.07 kJ

b. -57.07 kJ

c. +114.14 kJ

d. -114.14 kJ

e. +66.36 kJ

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