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A 50 ml sample of water at 5 degrees Celsius has 300 calories of heat added. What is the final temperature of the water?

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User Monish Sen
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1 Answer

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First we need to find Total change in temperature

  • Heat=Q=300C=12552J
  • Mass=50ml=50g
  • Specific heat capacity=c=4.186J/g°C[/tex]

Now


\\ \rm\longmapsto Q=mc\Delta T


\\ \rm\longmapsto \Delta T=(Q)/(mc)


\\ \rm\longmapsto \Delta T=(12552)/(50(4.186))


\\ \rm\longmapsto \Delta T=(12552)/(209.3)


\\ \rm\longmapsto \Delta T=59.9\approx 60°C

Now


\\ \rm\longmapsto \Delta T=T_2-T_1


\\ \rm\longmapsto 60=T_2-5


\\ \rm\longmapsto T_2=60+5=65°C

User Tran Hieu
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