Exam 9: Reaction Rates and Chemical Equilibrium

For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. The reaction is endothermic. What do you expect to happen to the concentration of NO if the temperature is doubled? 2NOBr(g) ⇌ 2NO(g) + Br₂(g)

A catalyst lowers the activation energy of a chemical reaction.

The physiological equilibrium system that keeps the temperature of the body constant is called __________.

Indicate the effect of each change upon the rate of a reaction. -The temperature is doubled.

An equilibrium in which all the components are gases is a __________ equilibrium.

In the reaction of nitrogen and hydrogen to give ammonia, all the reactants and products are __________.

At equilibrium, the concentrations of the reactants and products are always equal.

The rate of a chemical reaction is not affected by the concentration of reactants.

Indicate the effect of each change upon the rate of a reaction. -More collisions between molecules occur.

A mixture at equilibrium that contains less product than reactant has a Kc that is __________ than 1.

One of the substances acted upon by a catalytic converter in an automobile is carbon dioxide.

When a reaction is at equilibrium,

In a catalyzed chemical reaction, one function of a catalyst is to

If the equilibrium constant for a reaction is 1 × 10^-5, this means that the equilibrium mixture contains mostly reactants.

The reaction of hemoglobin with oxygen can be written as follows. Hb + O₂ ⇌ HbO₂ If the amount of oxygen available to the blood decreases significantly, what happens to the individual involved?

For the reaction of carbon with carbon dioxide to make carbon monoxide, the reaction is as follows. Write the equilibrium constant expression for the Kc. C(s) + CO?(g) ? 2CO(g)

For the equilibrium reaction of carbon dioxide with water, what is the appropriate equation?

A catalyst is

For the following reaction, the equilibrium constant Kc is 2.0 at a certain temperature. Bromine can be liquefied easily and removed from the reaction vessel as it is formed. If this is done, how will it affect the equilibrium reaction? 2NOBr(g) ⇌ 2NO(g) + Br₂(g)

Activation energy is always a large amount of energy.