Page 152 - Chemistry eBook
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Choice #3 (Continued)
Answer (Continued)
1. Solve: 209 = (10) (4.18) (X) 209=41.8X 209 = 41.8X 41.8 41.8
The temperature change is 5°C.
5=X
2. The question says that the original temperature is 23°C and asks for the final temperature. Since energy was absorbed, we know that temperature had to become higher.
23°C + 5°C = 28°C
This was an unusually hard Regents question. So don’t worry if you didn’t get it on your own.
151 © UNIT 5: MATTER
