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The total quantity of heat received by the soup |
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| Jun17-12, 06:10 AM | #1 |
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The total quantity of heat received by the soup
1. The problem statement, all variables and given/known data
frozen soup of a mass of 0,40kg enters a microwave at -15°C. after 6 minutes the soup eaches a ° of 75°C SHC of soup at solid state : c = 2100J/kg°C SHC of liquid soup : c = 4200K/kg°C SLH of fusion of soup : Lf = 330 000J/kg melting point of soup : 0°C THE QUESTION : WHAT IS THE TOTAL QUANTITY OF HEAT RECEIVED BY THE SOUP ? 2. Relevant equations E = mcΔt E= mL 3. The attempt at a solution E = mcΔT = 0,4 x 2100 x 15 =12600 J E = mL = 0,4 x 330 000 =132000J E = mcΔT = 0,4 x 4200 x 75 =126000 Etot = 132,000 + 12600 + 126000 =270600 J teachers answer : 2 671 000 J i have no idea how to get to it i am in my 5th year at the european school 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution |
| Jun17-12, 03:39 PM | #2 |
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mms0101,
I can't see anything wrong with your answer. Ratch |
| Jun18-12, 05:18 AM | #3 |
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You're right, teach is wrong. Sure that was his answer?
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| Jun18-12, 03:28 PM | #4 |
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The total quantity of heat received by the soup
ill go talk to him tomorrow as i have another answer to do with circuits that mismatch his ill let you know :) thank you anyway
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| energy, heat, questions, shc |
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