Answer:
Temperature of water in beaker decreased at rate of [tex]0.15428^{o} C[/tex] per minute.
Step-by-step explanation:
We are given:
[tex]\text{Initial temperature}=100^{o} C[/tex]
[tex]\text{Temperature after 525 minutes}=19^{o} C[/tex]
[tex]\text{ Change in temperature of water}=(100-19)^{o} C=81^{o} C[/tex]
Now we will divide change of temperature by 525 minutes to find change in temperature of water per minute.
[tex]\text{ Change in temperature of water per minute}=\frac{81^{o} C}{525\text{ minutes}}[/tex]
[tex]\text{ Change in temperature of water per minute}=\frac{0.15428^{o} C}{\text{ minute}}[/tex]
Therefore, temperature of water decreased at rate of [tex]0.15428^{o} C[/tex] per minute.