Question: What happens to the temperature of a substance during a phase change?
Options:
It increases
It decreases
It remains constant
It fluctuates
Correct Answer: It remains constant
Solution:
During a phase change, the temperature of a substance remains constant while heat is added or removed.
What happens to the temperature of a substance during a phase change?
Practice Questions
Q1
What happens to the temperature of a substance during a phase change?
It increases
It decreases
It remains constant
It fluctuates
Questions & Step-by-Step Solutions
What happens to the temperature of a substance during a phase change?
Correct Answer: Temperature constant rehta hai.
Step 1: Understand that a phase change is when a substance changes from one state to another, like from solid to liquid or liquid to gas.
Step 2: Recognize that during a phase change, the substance is absorbing or releasing heat energy.
Step 3: Note that even though heat is being added or removed, the temperature of the substance does not change during this time.
Step 4: Remember that the temperature will only change once the phase change is complete.
Phase Change – During a phase change, such as melting or boiling, the temperature of a substance does not change despite the addition or removal of heat.
Heat Transfer – Heat energy is used to change the state of a substance rather than increase its temperature during a phase change.
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