1. If 150 grams of water is to be heated from 15.0°C to 100°C to make a cup of tea, how much heat must be added? The specific heat of water is
4.18 J/gºC *
Your answer

You must add 53,295 J.

Explanation:

Calorimetry is the measure of the amount of heat that a body gives up or absorbs in the course of a physical or chemical process.

When the heat added or removed from a substance causes a change in temperature in it, it is called sensible heat. In other words, sensible heat is the amount of heat absorbed or released by a substance when a change in temperature occurs, without a change in its state.  Its mathematical expression is:

Q = c * m * ΔT

where Q is the heat exchanged by a body of mass m, constituted by a substance of specific heat c and where ΔT is the variation in temperature.

In this case:

Replacing:

Solving:

Q= 53,295 J

You must add 53,295 J.

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