Water falls through a height of 50m. Determine the temperature rise at the bottom of the fall. [Neglect energy losses. Specific heat capacity of water = 4200Jkg-1 K-1, g = 10m/s²]

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A. 0.119°C
B. 0.840°C
C. 1.190°C
D. 8.400°C

Correct Answer: Option A

A. 0.119°C

Explanation

mgh = mcθ

θ=gh/c=(10×50)/4200

= 0.119°C

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