1)      How much energy would be required to melt 15.0 g of water at 0 oC?  
 
 
2)      A sample of water with a mass of 75g undergoes a temperature change from 32oC to 9 oC. What is the heat change in Joules?
 
 
 
 
3)      A sample of Aluminum with a mass of 326.0g undergoes a temperature change from 96oC to 32 oC. What is the heat change in Joules? 
(Specific heat capacity of Al =0.900 J/g*oC)
 
 
 
 
4)      How much energy would it take to boil 36.0 g of water at 100 oC?
 
 
 
 
1)      Top of Form
2)      Bottom of Form
5)      A sample of Copper with a mass of 83g undergoes a temperature change from 80oC to 49 oC. What is the heat change in Joules?
 
 
 
6)      Calculate the energy released as 48 grams of water freezes.
 
 
 
7)      Calculate the energy required as 55 grams of water boils (vaporizes).
 
 
 
 
 
8) Calculate the energy released as 860 grams of water to condense.
 
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