Question

kcl dissolving is an endothermic reaction and the measured temperature decreases. which statement is true based on this temperature change? more energy is absorbed by bonds broken than is released by bonds formed. more energy is released as bonds are formed than absorbed as bonds are broken. the amount of energy absorbed as bonds are broken is equal to the energy released when bonds form.

Explanation:

Step1: Understand endothermic reactions

In an endothermic reaction, the system absorbs energy from the surroundings. The energy is used to break bonds. Since the temperature of the surroundings (measured temperature) decreases, it means the reaction is taking in heat from the surroundings. This implies that more energy is required to break the bonds in the reactants (in this case, KCl) than is released when new - bonds are formed in the solution process.

Answer:

More energy is absorbed by bonds broken than is released by bonds formed.