To calculate the Kp of the reaction equation, we’re going to use Hess’s Law. We’re going to manipulate the two reactions with given Kp values such that when we add them together, we will get the reaction equation with the unknown Kp.
Unknown Kc value: 1/2 S2(g) + H2(g) ⇌ H2S(g) Kc = ?
Reaction 1: 2 H2S(g) ⇌ 2H2(g) + S2(g) Kc = 1.6×10−2
At a particular temperature, Kc = 1.6×10−2 for 2 H2S(g) ⇌ 2H2(g) + S2(g)
Calculate Kc for the following reaction:
(a) 1/2 S2(g) + H2(g) ⇌ H2S(g)
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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.