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Chem12 Thermodynamics - thermal energy question

  1. Mar 27, 2013 #1
    chem12 Thermodynamics -- thermal energy question

    1. The problem statement, all variables and given/known data

    Which would have a higher amount of thermal energy:

    cup of tea @ 75°C OR bathtub of water @ 50°C

    2. Relevant equations

    q=mcΔT

    3. The attempt at a solution

    I know both are made of water with a specific heat capacity of 4.184 J/g°C. I don't know the differences in temperatures, but the fact that the tub has a greater mass probably has something to do with it, not sure what though

    Any help is appreciated. Thankyou!!! :)
     
  2. jcsd
  3. Mar 28, 2013 #2
    Thermal energy is simply U=mcT and only the heat transfer that is q=mcΔT. So you don't have to bother about the difference in temperature.
     
  4. Mar 28, 2013 #3
    Thankyou, this really helps!
     
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