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» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :The heat of combustion = `-(h <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> q xx M)//m` <br/>Rise in <a href="https://interviewquestions.tuteehub.com/tag/temperature-11887" style="font-weight:bold;" target="_blank" title="Click to know more about TEMPERATURE">TEMPERATURE</a> of calorimeter and its <a href="https://interviewquestions.tuteehub.com/tag/contents-25449" style="font-weight:bold;" target="_blank" title="Click to know more about CONTENTS">CONTENTS</a>, `theta = 10^@ ` <br/> The heat capacity of calorimeter and its contents, `h = 2.644 xx 4.184 J K^(-1)`. The inass of combustible <a href="https://interviewquestions.tuteehub.com/tag/substance-1231528" style="font-weight:bold;" target="_blank" title="Click to know more about SUBSTANCE">SUBSTANCE</a>, (benzoic acid), `m = 4.184g`. The molar mass of benzoic acid, `M = 122g mol^(-1)`. <br/> The heat of combustion of benzoic acid <br/> `= (2.644 xx 4.184 xx 10 xx122)/(4.184) = -3226 kJ mol^(-1)`</body></html>