- #1

lavendly

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## Homework Statement

You add 1500 cal of heat to a cup of water at 22.5ºC. The water has a mass of 500.0g. What is the final temperature of the water?

## Homework Equations

Q=mc

**ΔT**

## The Attempt at a Solution

so i tried solving it by finding the energy of the water

Q=(500g)(1.0cal/g)(22.5ºC)

Q=11250 cals

then i tried adding 11250 cals to the 1500 cals that was added onto it from the problem and got 12750 cals.

using 12750 cals as Q, i set up Q=mc

**ΔT**and plugged in all the known variables and solved for change in T, which was 25.5ºC. I took this change in T and added it to the initial temperature of 22.5ºC, and got 48ºC for the final temperature of the water. Is that right? I didn't get an answer sheet and I have a test tomorrow so I have no idea if I'm doing this right or not