Reply
Thu 24 Sep, 2015 08:29 am
A block of ice at 0°c weighing 250g is placed on a heater and warmed until all the ice has melted, how much energy was added to melt the ice ?
You use the equation q=m*c*ΔT
Q=quantity of heat
M=mass
c=specific heat capacity
ΔT=change in temperature
Everything needed to solve your question is in the problem. Just plug in the values!
The change in temperature is the final temperature minus the initial temperature.
C=4.18 J g °C
@Ramosb72,
Temperature doesn't change during phase change. The amount of energy is the product of the mass and the specific heat of that phase change.
Rap
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace