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Physics-Temperature & Heat

NEET Physics Temperature & Heat MCQ Question

Type: MCQ-numerical-Medium-Class 11

A 1 kg block of copper is heated from 25°C to 100°C. How much heat is absorbed by the copper block? (Specific heat of copper = 0.39 J g⁻¹ K⁻¹)

A

29325 J

B

29250 J

C

27000 J

D

30000 J

Correct Answer

Option A

Detailed Explanation

The heat absorbed is calculated using the formula Q = mcΔT, where m is mass, c is specific heat, and ΔT is temperature change. Using m = 1000 g, c = 0.39 J g⁻¹ K⁻¹, and ΔT = 75 K, we get Q = 1000 * 0.39 * 75 = 29325 J.

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