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Home Q & A Board Science-Related Homework Help Physics
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mikael mikael
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10 years ago

 
A substance has a melting point of 20°C and a heat of fusion of  1.4 × 104 J/kg. The boiling point is 150°C and the heat of vaporization is 2.8 × 104 J/kg at a pressure of one atmosphere. The specific heats for the solid, liquid, and gaseous phases are 600, 1000, and 400 J/kg · K, respectively. The quantity of heat required to raise the temperature of 1.90 kg of the substance from 5°C  to 89°C , in kJ, is closest to: 
A)
 
170 
B)
 
150 
C)
 
160 
D)
 
44 
E)
 
200 
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padrepadre
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9 years ago
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mikael Author
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9 years ago
Thanks for helping me on my physics homework
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