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posted by  NuTon on 10/30/2009 7:10:42 AM  |  status: Closed  |  Earned Karma: 109

Heat

Course Textbook Chapter Problem Needs by
Algebra Based Physics Physics: Principles with Applications (6th) by Giancoli 14 N/A 11/1/2009 at 7:00:00 AM
Question Details:
About how much energy is required to raise the temperature of 10 grams of water 50 degrees C?
NuTon
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Expert
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posted by new_sylar on 10/30/2009 7:24:12 AM  |  status: Live
Asker's Rating: Somewhat Helpful   
Response Details:
Specific heat of water is 1 so
as H=msΔt

answer is 500cal

best answer

-------Ford :p
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posted by NuTon on 11/4/2009 10:55:21 PM  |  status: Live
Asker's Rating: N/A-Posted by Person Asking Question   
Response Details:
How do the numbers plug in? Can you answer it in J (or kJ)?
NuTon
(SME)
posted by christina.S on 11/4/2009 11:03:00 PM  |  status: Live
Asker's Rating: Lifesaver   
Response Details:
We know that :
.
              Energy required is :
.
                          Q  =  m S ΔT  -------------(1)
.
Given :   m  =  10 grmas  ;  ΔT  =  50o C  ;   S  =  Specific heat of water =   4.186  J / gram o  C
.
Hence   Q  =  10 g  * 4.186 J /  gram o  C  *  50o C  
.
                  =   2093  J
.
Hope this helps u!
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