Equilibrium (GCSE Chemistry)

Which experimental change will increase the rate but NOT change the position of equilibrium for a reversible reaction?

In the Haber process, unreacted N2 and H2 are often recycled back into the reactor via a condenser and pipe. Why is the condenser connected back to the reactor?

Increasing the temperature for an exothermic equilibrium reaction (heat given out in forward direction) will:

Which experimental change increases the rate of reaction by increasing the frequency of successful collisions?

Which of the following best defines a catalyst?

Consider the reversible reaction A + B ? C + D. Removing some D from the mixture at equilibrium will cause:

Which of the following changes will reduce the time needed to reach equilibrium but will not alter the equilibrium concentrations?

When teaching Le Chatelier’s principle, which correct summary should students learn?

When ammonium nitrate dissolves in water the temperature of the solution falls. Which statement best describes this process?

In a rate experiment, a student measures how long it takes to collect a fixed volume of gas. If the time measured increases, what does this indicate about the rate?

A reaction profile shows the energy of reactants, a peak, and lower energy products. What does the peak represent?