STANDARDPhysics-Thermodynamics
STANDARD Physics Calorimetry MCQ Question
Type: MCQ-numerical-Medium-Class 11
The temperature of 100 g of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam required for this purpose is
A
10 g
B
12 g
C
14 g
D
16 g
Correct Answer
Option B
Detailed Explanation
Let m be the mass of steam required. By principle of calorimetry, 100 × 1 × (90 – 24) = m × 540 + m × 1 × (100 – 90). Solving gives m = 12 g.
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