Calculate how much energy (J) is required to heat up a pot containing 500. g of water from 23.0 °C to its boiling point of 100.0 °C (specific heat of water = 4.184 J/g°C).

2.0 lb of water inside a piston-cy inder assembly undergoes the following two processes in series Process 1-2: Contant pressure cooling from a saturated vapor at p1 = 170 psi until x2 = 80%. Process 2-3: Constant volume heating to a saturated vapor. There are no changes in kinetic or potential energy. a) [2 pts] Find the specific volume for state 1 in ft3/lb. b) [2] Find the specific volume at state 2 in At3/b

An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J).  It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).

Problem 2: There is a piston cylinder device that contains 0.03 kg of saturated liquid water. The water or H;O is heated to a final temperature of 300 °C. The piston has a mass of 10.0586 kg and a cross sectional area of 0.001m. The atmospheric pressure is 101.325 kPa. The piston can move upward as water is heated. a) Determine the pressure inside the cylinder by applying Newton's law in vertical direction b) What is the initial temperature of the water if the pressure inside the piston cylinder device is 200 kPa? c) Determine the amount of heat transfer required for the process m-5kg Water Figure for Problem 2