41. How much heat energy must you use to raise the temperature of 100 grams of water from 60C to 70C. Show your calculations.

42. You have a pot of 100C liquid water. If you add heat to the water, will the temperature start to raise at once? why or why not.

Thank you for your help!!

1 answer

41. q = mass H2O x specific heat H2O x (Tfinal-Tinitial)

42. 100 C is the boiling point for H2O. If you add more heat to water at 100 C it will start to boil. It will continue to boil until all of the water has evaporated. The temperature of the pot will not go above 100 C until all of the water has evaporated.