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: Ice to water to steam

  1. Nov 28, 2006 #1
    A 55 g ice cube at 0°C is heated until 40 g has become water at 100°C and 15 g has become steam at 100°C. How much energy was added to accomplish the transformation?

    I tried using Q=mL for each change and adding them together.




    18315+33900= 52215 which is not the correct answer.
  2. jcsd
  3. Nov 29, 2006 #2


    User Avatar
    Science Advisor
    Homework Helper

    You have 55g melting (latent heat of fusion) and 55g warming from 0° C to 100° C and then 15g vaporizing (latent heat of vaporization).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook