Equilibrium (GCSE Chemistry)

Which factor will increase the rate of a gas-producing reaction between a metal and acid when all others are constant?

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

Which of these is a correct description of dynamic equilibrium?

In the context of rates, what is the main reason increasing concentration increases reaction rate?

A student measures the rate of a reaction by timing how long it takes to collect a fixed volume of gas. Which improvement gives more accurate temperature control and reduces heat loss in a calorimetry-style reaction?

In a reversible reaction at equilibrium, adding more reactant will initially do what?

Which technique would a chemist use to demonstrate the effect of concentration on the position of equilibrium in a laboratory?

Which statement is correct?

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

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?

For the equilibrium 2 NO2(g) ? N2O4(g), which change would make the mixture turn a paler (less brown) colour?