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At Constant Pressure, the Combustion of 20

Question 121

Multiple Choice

At constant pressure, the combustion of 20.0 g of C2H6(g) releases 1036 kJ of heat. What is ΔH for the reaction given below?
2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l)


A) -173 kJ At constant pressure, the combustion of 20.0 g of C<sub>2</sub>H<sub>6</sub>(g) releases 1036 kJ of heat. What is ΔH for the reaction given below? 2C<sub>2</sub>H<sub>6</sub>(g) + 7O<sub>2</sub>(g) → 4CO<sub>2</sub>(g) + 6H<sub>2</sub>O(l) A) -173 kJ B) -779 kJ C) -1560 kJ D) -3120 kJ
B) -779 kJ At constant pressure, the combustion of 20.0 g of C<sub>2</sub>H<sub>6</sub>(g) releases 1036 kJ of heat. What is ΔH for the reaction given below? 2C<sub>2</sub>H<sub>6</sub>(g) + 7O<sub>2</sub>(g) → 4CO<sub>2</sub>(g) + 6H<sub>2</sub>O(l) A) -173 kJ B) -779 kJ C) -1560 kJ D) -3120 kJ
C) -1560 kJ At constant pressure, the combustion of 20.0 g of C<sub>2</sub>H<sub>6</sub>(g) releases 1036 kJ of heat. What is ΔH for the reaction given below? 2C<sub>2</sub>H<sub>6</sub>(g) + 7O<sub>2</sub>(g) → 4CO<sub>2</sub>(g) + 6H<sub>2</sub>O(l) A) -173 kJ B) -779 kJ C) -1560 kJ D) -3120 kJ
D) -3120 kJ At constant pressure, the combustion of 20.0 g of C<sub>2</sub>H<sub>6</sub>(g) releases 1036 kJ of heat. What is ΔH for the reaction given below? 2C<sub>2</sub>H<sub>6</sub>(g) + 7O<sub>2</sub>(g) → 4CO<sub>2</sub>(g) + 6H<sub>2</sub>O(l) A) -173 kJ B) -779 kJ C) -1560 kJ D) -3120 kJ

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