A substance has a temperature change from 20 degrees celsius to 45 degrees celsius. This corresponds to what temperature change in Fahrenheit degrees?
20 degrees Celsius is 68 degrees Fahrenheit. 45 degrees Celsius
is 113 degrees Fahrenheit. So 25 degrees change Celsius = 25 x 1.8
= 45 degrees Fahrenheit. 1 degree change in Celsius is equivalent
to 1.8 degrees change in Fahrenheit. Scroll down to related links
and look at "Conversion of Temperature Units".