How long does it take a 750-w coffeepot to bring to a boil 0.85l of water initially at 15? c?

assume that the part of the pot which is heated with the water is made of 360 g of aluminum, and that no water boils away. ignore the heat loss to the surrounding environment.

the value of specific heat for water is 4186 j/kg? c? and for aluminum is 900 j/kg? c? .

Explanation:

power rating of the coffee pot,

volume of water to be boiled,

initial temperature of water,

mass of aluminium in the pot,

specific heat of aluminium,

specific heat of water,

Considering that the water and aluminium are always at the same temperature.

Now the heat required to bring the water in the pot to 100°C:

Therefore time required to boil the water:

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