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Time to heat

  1. Apr 9, 2009 #1
    the problem im working on asks to find how long it would take to heat 52 gallons of water in a hot water heater if 4800 watts is being used and the temperature needs to be raised from 60 F to 120 F....

    My work is below...

    http://i674.photobucket.com/albums/vv106/jason03_2009/hw1.jpg
     
    Last edited: Apr 9, 2009
  2. jcsd
  3. Apr 9, 2009 #2

    berkeman

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    Staff: Mentor

    I'm not used to working in those units, but your approach looks sound. Did you get the correct answer? If not, try converting into mks units, and re-calculating to see what answer you get.
     
  4. Apr 9, 2009 #3
    Yea im used to SI units as well...I just worked with the units given since the conversions were given....I guess I could try it the other way to if I did it correctly
     
  5. Apr 9, 2009 #4

    Redbelly98

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    Is the water 52 pounds or 52 gallons?
     
  6. Apr 9, 2009 #5
    good call....its 52 gallons.. but I did the correct conversion in my calculations...
     
  7. Apr 9, 2009 #6

    Redbelly98

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  8. Apr 9, 2009 #7
    Thanks!...Just checking to see if it was right....
     
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