JEE Main 2016 Physics question
200 g water is heated from C to C. Ignoring the slight expansion of water, the change in its internal energy is close to (Given specific heat of water J kg K):
Answer: (4)
Solution
Since the expansion of the water is to be ignored, the work done against the atmosphere is negligible and the first law gives . The heat required is
Q = mcΔ T = (0.200\ kg)(4184\
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