Heat/Energy Question?

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Heat/Energy Question?

A piece of copper alloy with a mass of 86.0g is heated from 30.0c to 47.5c. During this process, it absorbs 521J of energy as heat?

What is the spefic heat of this copper alloy in J/g-K?
How much energy will the same sample lose if it is cooled to 24c (in J)?

2007-09-27 15:32:36 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

Argh! It doesn't get any easier than this! You have J, you have g and you have a temperature difference that is the same in C as it is in K and you need help? Are you kidding?!?!?!?

521 J / (86 g x 17.5 K) gives you the specific heat.

Part 2: Multiply this specific heat by 86 g and 24 K and you know how much energy was lost in J.

2007-09-28 06:59:55 · answer #1 · answered by Rush is a band 7 · 0⤊ 0⤋