An endothermic process:

An endothermic process:

• A. Absorbs energy
• B. Releases energy
• C. Produces heat
• D. Exaggerates mass

Answer: (A)

An endothermic process is defined by taking in energy from the surroundings. Because energy flows into the system, the surroundings often feel cooler, since heat is being drawn away. This contrasts with processes that release energy into the surroundings, which feel warm. The statement that best describes an endothermic process is that energy is absorbed. The other ideas—releasing energy, producing heat for the surroundings, or implying a change in mass unrelated to energy transfer—do not capture the defining energy flow direction. For example, melting ice requires heat input from the surroundings, which is why it’s endothermic.

An endothermic process is defined by taking in energy from the surroundings. Because energy flows into the system, the surroundings often feel cooler, since heat is being drawn away. This contrasts with processes that release energy into the surroundings, which feel warm. The statement that best describes an endothermic process is that energy is absorbed. The other ideas—releasing energy, producing heat for the surroundings, or implying a change in mass unrelated to energy transfer—do not capture the defining energy flow direction. For example, melting ice requires heat input from the surroundings, which is why it’s endothermic.