Question

a bomb calorimeter is used to measure ______ in reactions that occur in a constant volume.
energy changes
dietary calories
known quantities of water
nutrient absorption

Explanation:

A bomb calorimeter is a device used in chemistry to measure the heat released or absorbed in a chemical reaction at constant volume. Heat is a form of energy, so it measures energy changes. Dietary Calories are related to food - energy but not the general use of a bomb calorimeter. Measuring known quantities of water or nutrient absorption is not the function of a bomb calorimeter.

Answer:

energy changes