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Problem: From the data given below, calculate the approximate enthalpy change of reaction for the reaction below.  N2(g) + 3 F2(g) → 2 NF3 (g) bond energy           kJ/mol N≡N                       946 N=N                       418 N-N                        163 F-F                         159 N-F                         272 a) -209 kJ b) -737 kJ c) -992 kJ d) +879 kJ e) +836 kJ  

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Problem Details

From the data given below, calculate the approximate enthalpy change of reaction for the reaction below.

 N2(g) + 3 F2(g) → 2 NF3 (g)

bond energy           kJ/mol

N≡N                       946

N=N                       418

N-N                        163

F-F                         159

N-F                         272

a) -209 kJ

b) -737 kJ

c) -992 kJ

d) +879 kJ

e) +836 kJ

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