The height of victoria's falls is 63 m . What is the difference in the temperature of water at the top and at the bottom of the fall? [Given 1 cal = 4 . 2 J and specific heat of water = 1 cal g - 1 C ∘ - 1

Question

The height of victoria's falls is 63 m . What is the difference in the temperature of water at the top and at the bottom of the fall? [Given 1 cal = 4 . 2 J and specific heat of water = 1 cal g - 1 C ∘ - 1, 14 . 76 ° C, 1 . 476 ° C, 0 . 147 ° C, 0 . 014 ° C

MARKS App · Accepted Answer

Here use the concept of conservation of energy, here potential energy is converted in to heat energy, ⇒ m g h = m s Δ θ , here m , h & s , is the mass of the liquid, height of the fall, and specific heat capacity then, g × 63 = Δ θ × 4 . 2 × 10 3 ⇒ Δ θ = 0 . 147 ° C .

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