1. When 2 moles of CO(g) react with O 2 (g) to form CO 2 (g) according to the fo

Question

1. When       2 moles       of       CO(g) react       with       O2(g)       to form       CO2(g)       according to the following equation,       566       kJ of energy are       evolved.

When 2 moles of CO(g) react with O2(g) to form CO2(g) according to the following equation, 566 kJ of energy are evolved. 2CO(g) + O2(g) rightarrow 2CO2(g) Is this reaction endothermic or exothermic? What is the value of q? When 1 mole of S(s, rhombic) reacts with CO(g) to form SO2(g) and C(s, graphite) according to the following equation, 75.8 kJ of energy are evolved. S(s, rhombic) + 2CO(g) rightarrow SO2(g) + 2C(s, graphite) Is this reaction endothermic or exothermic?

Explanation / Answer

1. Exothermic because heat is being evolved
q = -566kJ

2. Exothermic because heat is being evolved

q = -75.9kJ

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