Which of the following units is commonly used to measure energy transferred as heat in chemistry?

• A. kelvin
• B. mole
• C. liter
• D. joule

Answer: (D)

Verified step by step guidance

1. Understand that energy transferred as heat in chemistry is a form of energy, so the unit must be an energy unit.
2. Recall that kelvin (K) is a unit of temperature, mole (mol) is a unit of amount of substance, and liter (L) is a unit of volume.
3. Identify that the joule (J) is the SI unit of energy, commonly used to measure energy, including heat transfer.
4. Recognize that heat transfer is often expressed in joules because it quantifies the amount of energy transferred.
5. Conclude that among the given options, joule is the correct unit to measure energy transferred as heat.