1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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

    rock.freak667

    User Avatar
    Homework Helper

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

    Borek

    User Avatar

    Staff: Mentor

    Watch significant numbers.

    --
    methods
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook