Carbon monoxide and oxygen react according to with for the reaction as written

CHEMISTRY · Multi-part · A Level · Chemistry · Energetics · Energetics

Problem

Carbon monoxide and oxygen react according to

2\,\text{CO}(g) + \text{O}_2(g) \longrightarrow 2\,\text{CO}_2(g)

with

\Delta H = -566\;\text{kJ}

for the reaction as written. A rigid steel vessel is charged with

2.50\,\text{mol}

of CO and

1.00\,\text{mol}

O_2

and the reaction proceeds to completion at constant pressure. (a) Identify the limiting reactant, supporting your answer with stoichiometric reasoning. (b) Calculate the number of moles of

CO_2

produced when the reaction reaches completion. (c) Determine the total heat released, in kilojoules, for the reaction carried out in the vessel. (d) Due to insulation inefficiencies, only

60\%

of the heat released in part (c) is transferred to the surroundings. Calculate the quantity of heat actually transferred to the surroundings and state its sign.

Related theory

Thermodynamics
Stoichiometric Calculations
Types of enthalpy
Enthalpy Changes of Reactions

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