The reaction of carbon dioxide(g) with hydrogen(g) to form carbon monoxide(g) and water(g) proceeds as follows: co2(g) + h2(g) > co(g) + h2o(g)when 16.4 grams of co2(g) react with sufficient h2(g) , 15.4 kj of energy areabsorbed .what is the value of > h for the chemical equation given? δhrxn = kj

ΔHrxn = 41.3 kJ

Explanation:

Let's consider the following equation.

CO₂(g) + H₂(g) ⇒ CO(g) + H₂O(g)

When 16.4 g of CO₂ react 15.4 kJ of energy are absorbed. In the balanced equation, there is 1 mole of CO₂, so we have to calculate the heat absorbed per mole of CO₂. Taking into account that the molar mass of CO₂ is 44.01 g/mol, the enthalpy of reaction (ΔHrxn) is:

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