2 N2 (g) + O2 (g) ---> 2 N2O (g) H= +163.2 kj/mol How much heat is required to produce 25.0 g of N2O by this reaction? Show all calculations.

46.3 kJ

Explanation:

Step 1: Write the thermochemical equation

2 N₂(g) + O₂(g) ⇒ 2 N₂O(g)  ΔH= +163.2 kJ/mol

Step 2: Calculate the moles corresponding to 25.0 g of N₂O

The molar mass of N₂O is 44.01 g/mol.

25.0 g × (1 mol/44.01 g) = 0.568 mol

Step 3: Calculate the heat released when 0.568 moles of N₂O are produced

According to the thermochemical equation, 163.2 kJ are required per 2 moles of N₂O.

0.568 mol × (163.2 kJ/2 mol) = 46.3 kJ

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