In which of the following processes does the temperature of a substance remain c

₹0.0

Question: In which of the following processes does the temperature of a substance remain constant?

Options:

Correct Answer: Phase change

Solution:

During a phase change, the temperature of a substance remains constant despite heat being added or removed.

In which of the following processes does the temperature of a substance remain constant?

In which of the following processes does the temperature of a substance remain constant?

Correct Answer: Phase change

Step 1: Understand what a phase change is. A phase change is when a substance changes from one state of matter to another, like from solid to liquid or liquid to gas.
Step 2: Recognize the states of matter involved in phase changes. The main states are solid, liquid, and gas.
Step 3: Learn that during a phase change, the temperature does not increase or decrease even if heat is added or removed. This is because the energy is used to change the state, not to change the temperature.
Step 4: Identify examples of phase changes: melting (solid to liquid), freezing (liquid to solid), boiling (liquid to gas), and condensation (gas to liquid).
Step 5: Conclude that in all these examples, the temperature remains constant during the phase change.

Phase Change – During a phase change (e.g., melting, boiling), the temperature of a substance remains constant while it absorbs or releases heat.