Calculate the heat capacity of a calorimeter if the combustion of 5.000 g of benzoic acid led to a temperature increase of 20.00 °C. The heat of combustion of benzoic acid is -26.38 kJ/g. ?

1 Answer
Michael
Nov 3, 2017

#sf(6.595color(white)(x)"kJ/"^@C)#

Explanation:

1g benzoic acid produces 26.38 x 1000 = 26380 J

#:.# 5g produces 26380 x 5 = 131,900 J

#:.#a #sf(20^@C)# rise is produced by 131,900 J

#:.# a #sf(1^@C)# rise is produced by #sf((131,900)/(20)=6595color(white)(x)J=6.595color(white)(x)"kJ")#

This means the heat capacity of the calorimeter is #sf(6.595color(white)(x)"kJ/"^@C)#

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