Physics
Assertion (A): The specific heat capacity of a substance is the amount of heat required to raise the temperature of unit mass of that substance by 1°C.
Reason (R): The specific heat capacity of a substance is not its characteristic property.
- Both A and R are true and R is the correct explanation of A
- Both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false.
Answer
assertion is true but reason is false.
Explanation
Assertion (A) is true. The specific heat capacity of a substance is the amount of heat required to raise the temperature of unit mass of the substance by 1°C (or 1 K).
Reason (R) is false. The specific heat capacity of a substance is its characteristic property. It represents the substance's ability to store heat energy per unit mass and is an intrinsic property that is unique to each substance.
Related Questions
The principle of calorimetry is based on :
- law of conservation of heat
- law of conservation of energy
- both (1) and (2)
- conservation of momentum
Heat is measured by:
- thermometer
- barometer
- principle of calorimetry
- both (1) and (2)
Assertion (A): The principle of the method of mixtures involves mixing substances at different temperatures to find the final temperature.
Reason (R): The law of conservation of energy states that the energy is neither created nor destroyed in an isolated system.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
Name the S.I. unit of heat.