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    blooreema's Avatar
    blooreema Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 12, 2007, 04:03 PM
    Heat Energy Absorbed
    A 300g piece of aluminum is heated from 30 degrees C to 150 degrees C. What amount of heat energy is absorbed?
    The specific heat capacity of aluminum is: 900

    I tried doing this question.. and substituting it in the formula Q=m c DeltaT

    but I get a different answer from my teacher's answer.

    Can someone help and tell me what I'm doing wrong, or if I am missing a step?
    Sanjay Persad's Avatar
    Sanjay Persad Posts: 110, Reputation: 0
    Junior Member
    		  
    #2

    Nov 12, 2007, 07:10 PM
    H=mst
    H=0.3kg x 900 x 120
    H= 32400 joules
    Sanjay Persad's Avatar
    Sanjay Persad Posts: 110, Reputation: 0
    Junior Member
    		  
    #3

    Nov 12, 2007, 07:11 PM
    Just remember to convert your given mass to kg, and apply the formula
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