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6. If 1.4 g of nitrogen is reacted with excess oxygen in a calorimeter containing 254...

6. If 1.4 g of nitrogen is reacted with excess oxygen in a calorimeter containing 254 g of water (specific heat capacity: 4.18 J/g·K), the temperature of the water changes from 25.0 ºC to 23.4 ºC. Determine the value of delta H (in kJ/mol) for this reaction per mole of nitrogen. N2(g) + 2 O2(g) N2O4(g)

a. 1.2 kJ

b. 1.7 kJ

c. 17 k J

d. 34 kJ

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