Question

The temperature of a body is directly proportional to which of the following?

• A. Total kinetic energy
• B. Total potential energy
• C. Average kinetic energy
• D. Average potential energy

Answer 1

Answer:

C. Average kinetic energy

The correct answer is indeed Average kinetic energy.

• The temperature of a body is a measure of the average kinetic energy of its particles. In other words, the temperature of a body is directly proportional to the average kinetic energy of its molecules or atoms.

• This is based on the Kinetic Theory of Gases, which states that the temperature of a substance is a measure of the average kinetic energy of its particles.

Mathematically, this can be expressed as:

T ∝ (1/2)mv²

Where:

• T is the temperature

• m is the mass of the particles

• v is the velocity of the particles

Since the average kinetic energy is directly proportional to the temperature, an increase in temperature means an increase in the average kinetic energy of the particles.