Carbon dioxide was supplied in excess at each temperature during the investigation.Explain why

Carbon dioxide was supplied in excess during the investigation for several reasons:

1. Ensuring Reaction Completion: By providing an excess of carbon dioxide, it ensures that all of the other reactants have enough carbon dioxide to react with. This helps to ensure that the reaction goes to completion, meaning that all of the reactants are used up.

2. Maintaining Constant Pressure: In some reactions, maintaining a constant pressure is important for the reaction to proceed at a steady rate. By supplying an excess of carbon dioxide, the pressure in the reaction vessel can be kept constant.

3. Preventing Side Reactions: In some cases, if there is not enough of one reactant, the other reactants may start to react with each other, causing side reactions. By providing an excess of carbon dioxide, this can be prevented.

4. Accurate Results: For the purpose of the investigation, it's important to control variables to get accurate results. By ensuring there's an excess of carbon dioxide, it removes the amount of carbon dioxide as a variable that could affect the outcome of the investigation.