Maths JEE Main Full Syllabus Mock Test 75 Question New Syllabus. TEST 5 PCM Numeric Response
Published on: August 14, 2026

of ice at is dropped into a calorimeter containing of water of and the specific heat of water is twice that of ice. When equilibrium is reached, the difference of masses of ice and water in calorimeter is gram, then the value of is

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The correct answer is:
10

(10) Heat given by water to reach at

Heat taken by ice to melt,

As , so ice will not completely melt and final temperature .

As heat given by water is cooling up to is only just sufficient to increase the temperature of ice from to , hence mixture in equilibrium will consist of ice and water at

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