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Homework Help: Specific Heat Problem in Celsius

  1. Dec 21, 2009 #1
    1. The problem statement, all variables and given/known data

    The specific heat of substance X is 200 J/g*C, how much heat is required to change the temperature of 2.0 kilograms of substance X from 40 degrees Celsius to 55 degrees Celsius?

    2. Relevant equations

    Q=(m)(c)(change T)

    3. The attempt at a solution
    55 C-40 C= 15 C
    2.0kg(1000 g/1 kg)= 2000 g

    (2000 g)(200 J/g*C)(15 C)= 6000000 J

    I'm am not sure if this is right at all. :uhh: Is it right?
  2. jcsd
  3. Dec 21, 2009 #2


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    Homework Helper

    Looks correct to me.
  4. Dec 21, 2009 #3


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    Staff: Mentor

    Watch significant numbers.

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