Question

What is the change in temperature when water goes from 65.0 °C to 25.0 °C? AT = [?] °C

Answer 1

Answer:

-40.0 °C

Explanation:

Change in temperature can be written as $\displaystyle{\Delta T = T_2-T_1}$. The variables are defined below here:

$\displaystyle{\Delta T}$ means change in temperature.

$\displaystyle{T_2}$ means the final temperature value.

$\displaystyle{T_1}$ means the initial temperature value.

From the question, we know the temperature changes from 65.0 °C to 25.0  °C. Therefore, our initial temperature is 65.0 °C and final temperature is 25.0 °C.

Hence:

$\displaystyle{\Delta T=25.0-65.0}\\\\\displaystyle{\Delta T = -40.0}$

Therefore, the change in temperature is -40.0 °C.