Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The rate of temperature change

  1. May 24, 2009 #1

    veritassium

    User Avatar

    I'd like to ask how to calculate the rate at which the temperature changes, knowing the power input and the specific heat capacity of an object?
     
    veritassium, May 24, 2009
  2. jcsd
    Phys.org - latest science and technology news stories on Phys.org
  3. May 24, 2009 #2

    Mapes

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Hi veritassium, welcome to PF. You can't, without also knowing the mass of the object. The rate of temperature change is the power input divided by the specific heat capacity and the mass. Note that this solution assumes that temperature gradients within the object are negligible. Make sure to check the units.
     
    Mapes, May 24, 2009
  4. May 24, 2009 #3

    veritassium

    User Avatar

    Thank you very much
     
    veritassium, May 24, 2009
  5. May 24, 2009 #4

    Bob S

    User Avatar

    Also, the heat conduction as well as heat capacity is important for finite size objects. Yo will need differential equations to solve these problems.
     
    Bob S, May 24, 2009
  6. May 24, 2009 #5

    dE_logics

    User Avatar

    You also gotta use Newton's law of cooling...much more to this.
     
    dE_logics, May 24, 2009
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: The rate of temperature change

  1. Pressure drops and Temperature changes (Replies: 2)

  2. Temperature change with altitude (Replies: 2)

  3. The temperature change in a throttling process (Replies: 1)

  4. Albedo shouldn't change the temperature (Replies: 2)

Loading...