Assertion: If OA is steeper than BC on a heating curve, it indicates a smaller solid specific heat than liquid specific heat.
Reason: On a temperature-versus-heat graph for fixed mass, slope equals the reciprocal of mass times specific heat.

Question

Assertion: If OA is steeper than BC on a heating curve, it indicates a smaller solid specific heat than liquid specific heat.

Reason: On a temperature-versus-heat graph for fixed mass, slope equals the reciprocal of mass times specific heat.

TestHub · Accepted Answer

For fixed mass, d Q d T ​ = m c 1 ​ . A steeper OA therefore means c solid ​ < c liquid ​ . Both Assertion and Reason are true, and Reason correctly explains Assertion. Answer A.

Physics - Heat & Thermo Question with Solution | TestHub

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