Question

Which of the following is the correct relationship in terms of the physical properties of a substance?

• A. The substance undergoes a reversible change, resulting in an irreversible process.
• B. The substance undergoes a change that does not affect the physical state.
• C. The substance undergoes a reversible change and retains its physical properties.
• D. The substance undergoes an irreversible change and retains its original form.

Hint:

Reversible changes do not alter the substance's state or properties, making them ideal for processes like physical phase changes (e.g., melting, freezing).

Answer 1

The Correct Option is C

Step 1: Understanding the Question.
The question asks about the physical properties of a substance undergoing a change. We are looking for a reversible change that does not affect the substance's physical properties.
Step 2: Analyzing the Options.
- (A) Describes an irreversible process, which is not correct for this context.
- (B) Describes a change that does not affect the physical state, but the nature of the change is not specified.
- (C) Is the correct answer because it describes a reversible change that preserves the physical properties of the substance.
- (D) Describes an irreversible change, which contradicts the reversible nature of the change in the question.
Step 3: Conclusion.
The correct answer is (C) The substance undergoes a reversible change and retains its physical properties.