20.8 g Ti metal 99.5℃ 21.7℃ water 75.0 g 24.3℃

20.8 g Ti metal 99.5℃ 21.7℃ water 75.0 g 24.3℃

 

 

A piece of titanium metal with a mass of 20.8 g

is heated in boiling water to 99.5 °C

and then dropped into a coffee cup calorimeter

containing 75.0 g of water at 21.7 °C.

When thermal equilibrium is reached,

the final temperature is 24.3 °C.

Calculate the specific heat capacity of titanium.

 

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q = C m Δt

( 참고 https://ywpop.tistory.com/2897 )

 

 

 

고온 물질이 잃은 열(-q) = 저온 물질이 얻은 열(+q)

-[(C) (20.8 g) (24.3 - 99.5 °C)] = +[(4.184 J/g•℃) (75.0 g) (24.3 - 21.7 °C)]

 

1564.16C = 815.88

 

C = 815.88 / 1564.16 = 0.522 J/g•℃

 

 

 

 

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