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  • 04-01-2018
  • Physics
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How much heat is needed to raise the temperature of 5g of water by 19oC?

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LearnGrow
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  • 04-01-2018

The water's specific heat is C=4.184 J g^-1 C^-1.

The water's specific heat tells you that you need 4.184 J of energy in the form of heat in order to increase the temperature of 1 g of water by 1∘C .

ΔT , is the change in temperature, will be equal to

ΔT=Tfinal−Tinitial We know that ΔT=19∘CTo increase the temperature of 5 g of water by 1∘C , you'd need 5*4.184/1=20,92 20,92*4.184 =87,529 J88 KJ heat is needed to raise the tempertaure of 5g of water by 19.
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