When boilingâ water, a hot plate takes an average of 77 minutesâ [min] and 5353 secondsâ [s] to boil 130130 millilitersâ [ml] of water?

Question

Physics

Catalina Paul

3 January, 11:59

When boilingâ water, a hot plate takes an average of 77 minutesâ [min] and 5353 secondsâ [s] to boil 130130 millilitersâ [ml] of water?

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Answers (1)

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Alexander Phillips · Answer 1

P_in = 195 W

P_out = Q / t, where Q is rhe amount of heat needed to boil off the water and t the time that takes. Q has two parts: Q1. The amount of heat needed to raise the temperature of the water to boiling temperature, and Q2 the amount of heat needed for evaporation.