Catch the false line on equilibrium

Exercise and reference answers

Questions

1. False statement

   Raising the temperature on an exothermic reaction makes more product.

   Statements

   1. Raising the pressure on ammonia synthesis makes more ammonia.
   2. Raising the temperature on an exothermic reaction makes more product.
   3. A disturbed equilibrium shifts to partly offset the change.

2. False statement

   Starting concentrations fix the value of the equilibrium constant.

   Statements

   1. The equilibrium constant of a reaction depends only on temperature.
   2. For a weak acid in water the constant is written Ka.
   3. Starting concentrations fix the value of the equilibrium constant.

3. False statement

   Water stays at a pH of seven at every temperature.

   Statements

   1. Water stays at a pH of seven at every temperature.
   2. Pure water at twenty five degrees celsius has a pH of seven.
   3. Heating an endothermic reaction shifts it toward the products.

Instructions

Each set of three lines about a chemical equilibrium hides one that is wrong. Tap that line.

Explanation