chemistry

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For the gas reaction at low pressure

2NOBr ↔ 2NO + Br2 ΔH = +61.1 kJ

which of the following statements are true?

a) Adding more Br2 shifts reaction to the right

b) Removing some NOBr shifts reaction to the left

c) Increasing temperature shifts reaction to the right

d) Changing temperature is the only thing that does not affect Kp

e) The use of a catalyst will not cause any change in the concentrations once equilibrium is reached

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