Question

The first law of thermodynamics is consistent with the law of conservation of ...........

• A. momentum
• B. energy
• C. mass
• D. velocity

Hint:

The first law of thermodynamics is essentially a statement of the conservation of energy.

Answer 1

The Correct Option is B

Step 1: First Law of Thermodynamics.
The first law of thermodynamics states that energy cannot be created or destroyed; it can only be transferred or converted from one form to another. This is a direct application of the law of conservation of energy.
Step 2: Analyzing the options.

- (1) momentum: The first law of thermodynamics does not deal with momentum.
- (2) energy: Correct. The first law deals directly with the conservation of energy.
- (3) mass: This is a concept addressed in mass-energy equivalence, but not directly in the first law of thermodynamics.
- (4) velocity: The first law does not deal with velocity.

Step 3: Conclusion.
The first law of thermodynamics is consistent with the law of conservation of energy, corresponding to option (2).