An engineer examining the oxidation of SO2 in the production of sulfuric acid determines that Kc = 1.7 × 108 at 600 K: 2 SO2(g) + O2(g) ⇌ 2 SO3(g) At equilibrium, the partial pressure of SO3 = 130 atm and the partial pressure of O2 = 120 atm. Calculate the partial pressure of SO2.

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answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).