Instructions: Answer the following problems completely, using complete sentences when necessary, and box yourfinal answer. 1. State the first law of thermodynamics in your own words. 2. A total of 135 J of work is done on a gaseous refrigerant as it undergoes compression. If the internal energy of the gas increases by 114 J during the process, what is the total amount of energy transferred as heat? Has energy been added to or removed from the refrigerant as heat? (This is Sample Problem B from your textbook, the solution is given if you are stuck). 3. Heat is added to a system, and the system does 26d of work. If the internal energy increases by 7 J, how much heat was added to the system? 4. How does a water wheel work? 5. Describe how a heat engine and a refrigerator works (found at the end of section 2 after the questions)(or use the internet)