10m2AssessmentFeedbackQuiz

If they energy required to break the bonds is greater than the energy given out by making new bonds the reaction is...

• Exothermic

• Endothermic

• Neutralisation

If they energy required to break the bonds is less than the energy given out by making new bonds the reaction is...

• Exothermic

• Endothermic

• Neutralisation

What is represented by letter C?

• Products

• Activation Energy

• Reactants

• Overall Energy Change

This chart shows what type of reaction?

• Endothermic

• Mesothermic

• Exothermic

• Freezing

This chart shows what type of reaction?

• Exothermic

• Combustion

• Endothermic

• Mesothermic

For the reaction...

N_{2 (g)} + 3 H_2(g) ⇌ 2 NH_{3 (g)}

If the pressure in the system is increased, which substance(s) will increase in concentration?

• N₂

• H₂

• N₂ and H₂

• NH₃

What is the effect of increasing the pressure on the following equilibrium: 2NO(g) + O₂ (g) ⇌2NO₂(g)?

• The yield of NO₂ increases

• The yield of NO₂ decreases

• The reaction is slower

• The concentration of O₂ increases.

Which of the following is NOT true at equilibrium?

• The forward and reverse reactions proceed at the same rate.
• The concentrations of reactants and products do not change.
• The concentration of the reactants is equal to the concentration of the products.
• The forward and reverse reactions continue to occur.

H₂(g)+Cl₂(g)⇌2HCl(g)

The forward reaction is exothermic. What will happen to the equilibrium if the temperature is increased?

• The equilibrium shifts to the right.

• The equilibrium shifts to the left.

• You cannot predict the effect.

• There will be no change.

For the reaction...

SO₂ + O₂ ⇌ SO₃

If the concentration of SO₂ is increased, the equilibrium of the reaction will shift ___________.

• left

• right

• left and right

• neither left nor right