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Q.

Asked by Arushi Juyal 16th December 2017, 8:00 AM
Answered by Expert
Answer:
Given colon
space
Weight space of space benzoic space aicd space equals space 1.89 space straight g
Mass space of space water left parenthesis straight m right parenthesis space equals space 18.94 space kg
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 18940 space straight g

Temperature space of space bomb space calorimeter equals space 25 to the power of 0 straight C
Increase space in space temperature space left parenthesis increment straight T right parenthesis equals space 0.632 space to the power of 0 straight C
Specific space heat space of space water space equals space 0.998 space cal divided by straight g divided by deg

Heat space liberated space by space benzoic space acid comma space straight Q equals space ms increment straight T
space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 18940 cross times 0.998 cross times 0.632

space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 11946.13 space cal

space space space 1.89 space straight g space of space benzoic space acid space liberates space 11946.13 space cal space of space heat

therefore 122 space straight g space of space benzoic space acid space will space liberate space fraction numerator 11946.13 cross times 122 over denominator 1.89 end fraction

space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 771126.48 space cal

space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 771.12 space kcal
Answered by Expert 18th December 2017, 9:33 AM
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