Question

When a calorimeter is used, no thermal energy is exchanged between the contents of the container and the outside air. If an exothermic reaction is conducted inside a calorimeter filled with water, which of the following statements best describes what occurs during the reaction?

The thermometer will show an increase in the water's temperature.

The total energy of the reaction will increase.

The reaction will absorb thermal energy from the surroundings.

The potential energy of the reactants will be lower than that of the reactants.

Answer 1

A

Step-by-step explanation:

The last one (D) describes an endothermic reaction. D is not right.

The total energy will not increase. If it did everyone would use that reaction in their automobiles. That's getting something for nothing. B is not right.

C is wrong as well. If anything, the reaction will try to get rid of Thermal Energy. That means

A is correct. A is the exact opposite to C.