A student investigates the rate of reaction between marble chips (CaCO3\text{CaCO}_3CaCO3) and dilute hydrochloric acid (HCl\text{HCl}HCl) by recording the mass of the reaction flask and its contents over time. The reaction equation is:
CaCO3(s)+2HCl(aq)→CaCl2(aq)+H2O(l)+CO2(g) \text{CaCO}_3\text{(s)} + 2\text{HCl(aq)} \rightarrow \text{CaCl}_2\text{(aq)} + \text{H}_2\text{O(l)} + \text{CO}_2\text{(g)} CaCO3(s)+2HCl(aq)→CaCl2(aq)+H2O(l)+CO2(g)As carbon dioxide gas escapes, the overall mass of the flask decreases.
The experiment is repeated at a higher temperature, keeping the concentration and volume of acid, and the size and mass of the marble chips, constant.
State the effect of the higher temperature on the mass of the flask and its contents after 40 seconds.
