Physics
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.
Answer
Both A and R are true and R is the correct explanation of A.
Explanation
Assertion (A) is true. The principle of the method of mixtures involves mixing substances at different temperatures to find the final temperature. This method is based on the principle that heat lost by the hotter substance is equal to the heat gained by the colder substance when they reach thermal equilibrium.
Reason (R) is true. The law of conservation of energy states that energy is neither created nor destroyed in an isolated system. This principle is fundamental in understanding heat transfer processes, including the method of mixtures. In the method of mixtures, the total energy of the system (the substances being mixed) remains constant, as energy is transferred from the hotter substance to the colder substance until thermal equilibrium is reached.
Related Questions
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