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10 votes
10 votes
Heat conversation:

What is the final temperature?

q= 5750J

M= 455g

C=0.79J/g c

T_i=24.0 c

T_f= ?

Delta t= ?

User Mansoor Elahi
by
2.8k points

1 Answer

25 votes
25 votes

  • First we need del t


\\ \sf\longmapsto Q=mc\Delta T


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


\\ \sf\longmapsto \Delta T=(5750)/(455(0.79))


\\ \sf\longmapsto \Delta T=(5750)/(359.45)


\\ \sf\longmapsto \Delta T\approx 16°C

Now


\\ \sf\longmapsto \Delta T=T_i-T_f


\\ \sf\longmapsto T_f=T_i-\Delta T


\\ \sf\longmapsto T_f=24-16


\\ \sf\longmapsto T_f=4°C

User Alex Abdugafarov
by
2.9k points