Question

A hot pack used for warming hands contains iron, oxygen, water, and salt. When the package is squeezed, the reaction begins and the pack heats up to 200°F. What happens to the energy released by this exothermic reaction?

(1 point)
Responses

The energy is absorbed by the reactants to continue the chemical reaction.
The energy is absorbed by the reactants to continue the chemical reaction.

The energy is transferred as heat from the reaction system to the surroundings.
The energy is transferred as heat from the reaction system to the surroundings.

The energy is completely destroyed once it has been released by the reaction.
The energy is completely destroyed once it has been released by the reaction.

The energy remains stored inside the newly formed chemical products.

Answer 1

The energy is transferred as heat from the reaction system to the surroundings.

Explanation: the chemical energy released by iron oxidation is converted to thermal energy, raising the temperature of the pack and surrounding air (and slightly increasing internal energy of the products), not destroyed or stored as chemical energy.