4.184g of benzoic acid was burnt in bomb calorimeter. The rise in the temperature is 10^@. The heat capacity of calorimeter and its contents is 2.644 kcal K^(-1). Calculate the heat of combustion of benzoic acid.

4.184g of benzoic acid was burnt in bomb calorimeter. The rise in the

1.	4.184g of benzoic acid was burnt in bomb calorimeter. The rise in the temperature is 10^@. The heat capacity of calorimeter and its contents is 2.644 kcal K^(-1). Calculate the heat of combustion of benzoic acid.
Answer» SOLUTION :The heat of combustion = `-(h XX q xx M)//m` Rise in TEMPERATURE of calorimeter and its CONTENTS, `theta = 10^@ ` The heat capacity of calorimeter and its contents, `h = 2.644 xx 4.184 J K^(-1)`. The inass of combustible SUBSTANCE, (benzoic acid), `m = 4.184g`. The molar mass of benzoic acid, `M = 122g mol^(-1)`. The heat of combustion of benzoic acid `= (2.644 xx 4.184 xx 10 xx122)/(4.184) = -3226 kJ mol^(-1)`