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July 28, 2015

Homework Help: chem

Posted by HEATHER on Wednesday, February 1, 2012 at 9:13pm.

1) If more reactant is added to a gaseous reaction at equilibrium, what will happen to the value of the equilibrium constant?

a. it will increase
b. it will decrease
c. it will remain the same
d. it can either increase or decrease

2) Which of the following describes a property at the microscopic level?

a. the brown colour of nitrogen dioxide gas
b. the odour of ammonia gas
c. a temperature increase
d. a collision between NO2 molecules

3) For any reversible reaction at equilibrium

a. the concentrations of the products and reactants must be equal
b. the rates of forward and reverse reactions are equal
c. both a and b are true
d. neither a nor b is true

4) If the temperature of a reaction increases, what will happen to the value of the equilibrium constant?

a. it will increase
b. it will decrease
c. it will remain the same
d. it can either increase or decrease

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