Water falls through a height of 50m. Determine the temperature rise at the bottom of...

WAEC 2005

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 = 10ms²]

A. 0.119^oC
B. 0.840^oC
C. 1.190^oC
D. 8.400^oC

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Correct Answer: Option A

Explanation

mgh = mc\(\theta\)

\(\theta = \frac{gh}{c} = \frac{10 \times 50}{4200}\)

= 0.119^oC

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Water falls through a height of 50m. Determine the temperature rise at the bottom of...

Correct Answer: Option A

Explanation

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