What typically happens to an object as it receives energy due to heat flow?

• A. Its chemical composition always changes.
• B. Its mass increases.
• C. It loses energy to its surroundings.
• D. Its temperature increases.

Answer: (D)

Verified step by step guidance

1. Understand that when an object receives energy due to heat flow, this energy transfer is called heat transfer, which affects the object's internal energy.
2. Recall that heat energy added to an object typically increases the kinetic energy of its particles, which is observed as an increase in temperature.
3. Recognize that the chemical composition of the object does not necessarily change just because heat is added; chemical changes require specific reactions, not just heat flow.
4. Note that the mass of the object remains constant during heat transfer because adding heat does not add or remove matter.
5. Conclude that the most direct and typical effect of heat flow into an object is an increase in its temperature, reflecting the rise in the average kinetic energy of its particles.