1) What experimental condition is required for the heat change in a reaction to be numerically equal to the enthalpy change (ΔH)?

Question

1) What experimental condition is required for the heat change in a reaction to be numerically equal to the enthalpy change (ΔH)?

2) When 1 mol of nitrogen gas reacts with 3 mol of hydrogen gas, 2 mol of ammonia gas is produced and 92.6 kJ of heat is released. Write the thermochemical equation.

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Kim Cúc 5 months 2021-08-15T13:44:44+00:00 1 Answers 7 views 0

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    2021-08-15T13:46:14+00:00

    Answer:

    Answers are in the explanation

    Explanation:

    1) The constant pressure is necessary during a reaction. Thus, the heat released in the reaction will be = ΔH

    2) The reaction described in the problem is:

    1 N₂(g) + 3H₂(g) → 2NH₃(g)

    The thermochemical equation involves the change in heat, as 92.6kJ are released, the heat must be wrote as another reactant, that is:

    N₂(g) + 3H₂(g) → 2NH₃(g) + 92.6kJ

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