Water is boiled at sea level in a coffeemaker equipped with an immersion-type electric heating element. The coffeemaker contains 1 Lof water when full. Once boiling starts, it is observed that half of the water in the coffeemaker evaporates in 13.00 min. Determine thepower rating of the electric heating element immersed in water. Also, determine how long it will take for this heater to raise thetemperature of 1 L of cold water from 18°C to the boiling temperature. The enthalpy of vaporization of water at the saturationtemperature of 100°C is hig 2256.4 kJ/kg. At an average temperature of (100+18)/2 = 59°C, the specific heat of water is c=4.18 kJ/kg.°C and the density is about 1 kg/L. (Round the final answer to three decimal places.)1 atmCoffeemaker1LThe power rating of the electric heating element is1.446 KWIt will take3.950 min to raise the temperature of this water to the boiling temperature.

Step by step answer: Given Information: Volume of water = 1 L (which corresponds to 1 kg of water…

Answered: Water is boiled at sea level in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Water is boiled at 1 atm pressure in a coffeemaker equipped with an immersion-type electric heating element. The coffeemaker initially contains 1 kg of water. Once boiling has begun, it is observed that half of the water in the coffeemaker evaporates in 10 min. If the heat loss from the coffeemaker is negligible, the power rating of the heating element is (a) 3.8 kW (b) 2.2 kW (c) 1.9 kW (d) 1.6 kW (e) 0.8 kW

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