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akch2002, Engineer

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Can someone quickly help me with these?
Questions: write

Customer Question

Can someone quickly help me with these?

Questions: write questions and show all work and relative % error.

1. 50g or water at 200C is add to 70g of water at 400C. Use the law of heat exchange to find the final temp.

2. Determine the final temperature when 50g of ice at -100C is added to 200g of water at 300C. Use online resources to find the specific heat of ice. Show all steps in the heat exchange process.

3. A typical water heater holds 30 gallons or about 120kg of water. If the incoming 220C water is to be heated to 400C and electricity costs $.12/kWHr, how much will it cost to heat a full tank of water? (A kWHr is 3.6x106J)

I hope questions are to be written as given below. Kindly confirm.

Kindly inform time in hours in which you would like to have answers for these questions.

Questions: write questions and show all work and relative % error.

1. 50g or water at 20^{0}C is add to 70g of water at 40^{0}C. Use the law of heat exchange to find the final temp.

2. Determine the final temperature when 50g of ice at -10^{0}C is added to 200g of water at 30^{0}C. Use on line resources to find the specific heat of ice. Show all steps in the heat exchange process.

3. A typical water heater holds 30 gallons or about 120kg of water. If the incoming 22^{0}C water is to be heated to 40^{0}C and electricity costs $.12/kw hr, how much will it cost to heat a full tank of water? (A kw hr is 3.6x10^6J)

1. is suppose to be 50g OF water at 20 C and 70g of water at 40 C.

2. 50g.. 10C & 200g... 30C

3. 22C... 40C..

Sorry don't know why it showed the extra zero. I honestly have a half hour to figure these three questions out. If you cant help in this short time frame, its okay. I will just do my best. I just can't get these three.