Page 162 - Chemistry eBook
P. 162
Heating Curve Chart (Part 1)
• During endothermic reactions, heat is gained. Therefore, the phases go from solid to liquid to gas.
• The slanted lines show that: 1. The substance is remaining
in the same phase – solid, liquid, or gas.
a. Line AB: solid b. Line CD: liquid c. Line EF: gas
2. The temperature / kinetic energy is increasing. The line is moving up in temperature.
I didn’t realize that substances go through phases. I thought only teenagers do.
161 © UNIT 5: MATTER
