Question

We will work with water since you know the constants:

Select a mass (between 0.5 grams and 20 grams)_______________________

Select starting temperature between -50 degrees C and -5.0 degrees C ________________

Select a rate of heat input (between 2 and 10 calories/minute). ____________________

1. You are going to heat your water (in a perfect thermos) by adding heat at the given rate. Your water has started out as ice.

For the conditions you have selected report in a table the temperature vs time (select reasonable times so that you have several data points).

Continue until your ice has melted and reached a final temperature of 20.0 degrees C.

2. How much total heat was needed to reach the final temperature? Show by using our simple heat equations for Q? Does your result agree with the table above?

Answer 1