Question

𝟐𝑺𝑶𝟐(𝒈) + 𝑶𝟐(𝒈) ⇌ 𝟐𝑺𝑶𝟑(𝒈)

Kc = 6.1 x 104 at 750K. At equilibrium 𝑷𝑺𝑶𝟐 = 𝟏.𝟐𝟐 𝒃𝒂𝒓 and 𝑷𝑶𝟐 = 𝟐.𝟑𝟑 𝒃𝒂𝒓.

Calculate 𝑃 at 750 K (3 points). Hint be sure to convert Kc to Kp first. 𝑆𝑂3

Calculate Kc at 550 K if Δ𝑟𝐻𝑜 = −197.8 𝑘𝐽 𝑚𝑜𝑙−1 (2 points).

Does the decrease in temperature favour products or reactants at equilibrium (1 point)?

Answer 1

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