Which of the following is an extensive property of a substance?

• A. Mass
• B. Density
• C. Color
• D. Temperature

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the difference between extensive and intensive properties. Extensive properties depend on the amount of substance present, while intensive properties do not depend on the amount of substance.
2. Step 2: Review each property given in the problem: Mass, Density, Color, and Temperature.
3. Step 3: Analyze Mass: Mass changes if you have more or less of the substance, so it depends on the quantity, making it an extensive property.
4. Step 4: Analyze Density, Color, and Temperature: These properties remain the same regardless of the amount of substance, so they are intensive properties.
5. Step 5: Conclude that Mass is the extensive property among the options because it varies with the amount of substance.