If we increased the amount of acetic acid and sodium bicarbonate to 2.0 moles, what effect would this have on the reaction? The enthalpy change? Explain
What reaction? Increase from what to what?
To determine the effect of increasing the amount of acetic acid and sodium bicarbonate on the reaction, as well as the enthalpy change, we need to consider the balanced equation of the reaction. I assume the reaction you are referring to is the reaction between acetic acid (CH3COOH) and sodium bicarbonate (NaHCO3), which produces water (H2O), carbon dioxide (CO2), and sodium acetate (CH3COONa):
CH3COOH + NaHCO3 -> H2O + CO2 + CH3COONa
When we increase the amount of reactants (acetic acid and sodium bicarbonate) to 2.0 moles, it means that we now have twice the number of moles available for the reaction compared to the initial condition.
The effect on the reaction: Increasing the amount of reactants will increase the rate at which the reaction takes place. This is because there are more reactant particles available, leading to more frequent collisions and a higher chance of successful collisions. As a result, the reaction will proceed at a faster rate. Additionally, increasing the amount of reactants may also increase the overall yield of the products (water, carbon dioxide, and sodium acetate).
The effect on the enthalpy change: The enthalpy change of a reaction is a measure of the heat energy exchanged during the reaction. It is independent of the number of moles of reactants used. Therefore, increasing the amount of acetic acid and sodium bicarbonate to 2.0 moles will not directly affect the enthalpy change of the reaction. The enthalpy change is determined by the specific chemical bonds broken and formed in the reaction, which remains the same regardless of the quantity of reactants.
However, it is important to note that increasing the amount of reactants can indirectly affect the enthalpy change if the reaction is exothermic or endothermic. In an exothermic reaction (releases heat), increasing the quantity of reactants may result in a higher total heat release, resulting in a larger negative enthalpy change. In an endothermic reaction (absorbs heat), increasing the amount of reactants may increase the amount of heat absorbed, resulting in a larger positive enthalpy change.
In conclusion, increasing the amount of acetic acid and sodium bicarbonate to 2.0 moles will increase the rate of the reaction but will not directly affect the enthalpy change, which is determined by the specific chemical bonds broken and formed during the reaction.