Answer to Question #118731 in Chemistry for Amanda Gray

Question

Equilibrium Systems Ch.15
Two part multiple choice question:

Sulfuric acid is the most common commercial acid, with millions of tonnes produced each year. The second step in the “contact” process for industrial production of sulfuric acid involves the oxidation of sulfur dioxide gas catalyzed by contact with V2O5(s) powder. The reaction equation is

2SO2(g)+O2(g) -> 2SO3(g) delta H= -198kJ

The imposed condition that does not shift equilibrium toward the product is
A. adding the vanadium pentoxide catalyst
B. decreasing the temperature
C. decreasing the container volume
D. adding oxygen to the system container

If the equilibrium constant for the above oxidation reaction at a given temperature is 2.4x10^3, then the constant for the reverse reaction (written as the decomposition of sulfur trioxide) is
A. 2.4x10^3
B. 4.2x10^-4
C. 2.4x10^-3
D. 4.2x10^4

Answer 1

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