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: Heating Water

  1. Jun 22, 2010 #1
    Why heating water at 90C takes longer than heating water at lower temperatures such as 70C?
     
  2. jcsd
  3. Jun 22, 2010 #2
    I never heard of this before. But I can't give you an answer since I don't know much about heat transfer.
     
  4. Jun 22, 2010 #3

    Zryn

    User Avatar
    Gold Member

    Because a lower initial temperature requires more energy to reach a set point? Water heats linearly (generally) between 0C and 100C (STP) ... 4186j/C or so.
     
  5. Jun 22, 2010 #4

    DaveC426913

    User Avatar
    Gold Member

    You need to show your work. We cannot give you answers.

    Why do you think it takes longer?
     
  6. Jun 22, 2010 #5
    does the specific heat capacity has something to do with this?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook