Suppose we pour 25 mL of cream at 5°C into 200 mL of coffee at 70°C. What will be the final temperature? How much is the entropy change of the coffee, the cream, and the universe?
The video gives a solution to this problem. There is a Geogebra applet online that will solve the problem with user input for the parameters. https://www.geogebra.org/material/edit/id/Gmt3ZrUS
