Question

which statement defines calorimeter?

a device that measures the potential energy of an element

a device that is used to measure heat capacity

a device that measures the heat that is gained or lost in a chemical change

a device that is used to measure temperature

Explanation:

Analyze the definition of a calorimeter

A calorimeter is an experimental apparatus used to measure the quantity of heat transferred to or from an object during a physical or chemical process.

Evaluate the given options

• "a device that measures the potential energy of an element": Incorrect. Potential energy is not directly measured by a calorimeter.
• "a device that is used to measure heat capacity": Incorrect. Heat capacity is a property of a substance, not the direct quantity measured by the device itself.
• "a device that measures the heat that is gained or lost in a chemical change": Correct. This matches the fundamental definition of calorimetry.
• "a device that is used to measure temperature": Incorrect. A thermometer measures temperature, which is only a component of calorimetry.

Answer:

• a device that measures the potential energy of an element
• a device that is used to measure heat capacity
• a device that measures the heat that is gained or lost in a chemical change (Correct answer)
• a device that is used to measure temperature