Question

What is the approximate value of the solution after 1.75 if it is 19 degree celcius at 1.5 and 24 degree celcius at 2.0 minute?

Answer 1

Do you mean what is the approximate value of the "temperature" after ......? And is the 1.75 and 2.0 minutes or some other number. Here is the way to interpolate between what you know.
19^o C at 1.5 minutes
??^o C at 1.75 minutes.
24^o C at 2.0 minutes.
Hint: Note that the 1.75 is exactly half way between 1.5 and 2.0, so wouldn't the temperature be about halfway between 19 and 24?

Answer 2

Thanks a lot