How many joules does it take to raise the temperature of 2.00 L of water from 22.0*C...

Question:

How many joules does it take to raise the temperature of 2.00 L of water from 22.0*C (centigrades)to 40.0 *C (centigrades)? How many kilojoules? Take the density of water to be 1.00 g/ml.

Temperature vs. Heat:

Temperature and heat are two different concepts. In fact, temperature is not the measure of heat. This is not to say that the two are not related but they are not directly connected. As an example think of ice melting. The reason it melts is because it absorbs energy from its surroundings. If it is absorbing energy then its heat content must be rising. If temperature is a measure of heat then its temperature would also rise, but it does not. During the time the ice is melting, even though it is absorbing heat, its temperature stays the same. Actually what the absorbed energy does is move the ice particles apart changing the solid material to liquid.

Answer and Explanation:

The formula to follow for this question is: {eq}Q\;=\;C\;*\;m\;*\;\Delta t {/eq}

where Q is the heat absorbed or lost, C is specific heat of the...

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Heat Capacity: Definition & Equation

from General Studies Science: Help & Review

Chapter 4 / Lesson 9
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