Changr 20 min in to hr

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How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.