50 calories 38) If you were to completely burn this chocolate and transfer 100% of the heat to a 1000 ml beaker of...

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50 calories

Answer 1

Answer #1

here heat Q=50 calories =4.18*50=209 Joules.209 joules is completely transfered to water

mass of water m=volume*density=1000 ml*1g/ml =1000g

heat capacity of water c=4.18J/g

Q=mc(t₂-t₁)

t₁=20⁰C

t₂=?

209J=1000g*4.18J/g *(t₂-t₁)

(t₂-t₁) =209J/(1000g*4.18J/g)=0.05⁰C

t₂=0.05+20⁰C=20.05⁰C

final temperature=20.05⁰C

thank you

Answer 2

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