8th October 2011 - 04:34 PM
Can someone help me with this question?? Find the mass of ice melted when 0.3kg of 0C ice is dropped into 0.3kg of 75C water. Specific heat capacity of water is 4200J/kg/C Specific latent heat of fusion of ice is 334 000 J/kg/C. Many thanks
8th October 2011 - 05:20 PM
Insufficient data. What's the ambient temperature?
9th October 2011 - 03:44 AM
Room temperature is neglected
9th October 2011 - 08:41 AM
I presume that you mean that the system is thermally isolated - i.e. sufficiently insulated that no significant heat flows in or out for the duration of the experiment. In that case, the following may be useful.
Guessing that there will be some ice left by the phrasing of the question, what will be the final temperature of the water in thermal equilibrium?
The heat of fusion is the amount of energy needed to melt 1kg of ice. The units you posted are wrong, by the way. If that's a typo in the question, that may be what's confusing you.
The heat capacity is the amount of energy released by cooling 1kg of water by 1C.
Post your working if you get stuck.