Question

In the heating curve of an unknown substance, the line labeled C represents what change(s)?

A) Temperature

B) Kinetic Energy

C) Temperature and Kinetic Energy

D) Temperature and Potential Energy

Answer 1

C) Temperature and Kinetic Energy.

Step-by-step explanation:

In the heating curve of an unknown substance, the line labeled C represents Temperature and Kinetic Energy.

Answer 2

C) Temperature and Kinetic Energy.

Step-by-step explanation:

Hello there!

In this case, according to the generic heating curve on the attached file, it possible to see that on the point C, whereas the line is diagonal, the temperature increases, but also the kinetic energy increases because the molecules gain energy due to the increase of the temperature. It is important to say that on flat lines, like those on B and D, the phase change takes place and just the potential energy change.

In such a way, we infer that the answer is C) Temperature and Kinetic Energy.

Best regards!