A 1.250 g sample of octane(C_(8)H_(18)) is burnedin excess of oxygen in a bomb calorimeter. The temperatre of the calorimeter risesfrom 294.05 K to 300.78K. If heat capacityof the calorimeter is 8.93kJ//K, find the heat transferred to the calorimeter. Also calculate the enthalpy combustion of the sample of octane.

A 1.250 g sample of octane(C_(8)H_(18)) is burnedin excess of oxygen i

1.	A 1.250 g sample of octane(C_(8)H_(18)) is burnedin excess of oxygen in a bomb calorimeter. The temperatre of the calorimeter risesfrom 294.05 K to 300.78K. If heat capacityof the calorimeter is 8.93kJ//K, find the heat transferred to the calorimeter. Also calculate the enthalpy combustion of the sample of octane.
Answer» <html><body><p><br/></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> :Rise in temperature ` = 300.78 - 294.05K = 6.73K ` <br/> Heattransferredto the calorimeter `= ` Heat capacity of the calorimeter `xx` Rise in <a href="https://interviewquestions.tuteehub.com/tag/temp-1240937" style="font-weight:bold;" target="_blank" title="Click to know more about TEMP">TEMP</a>. <br/> Molar mass of `= ( 8.90kJ K^(-1)) ( 6.73K) = 60.1 kJ` <br/>`C_(8) H_(18) = 8 xx 12 + 18 = 114 <a href="https://interviewquestions.tuteehub.com/tag/g-1003017" style="font-weight:bold;" target="_blank" title="Click to know more about G">G</a> mol^(-1)` <br/> `:. `<a href="https://interviewquestions.tuteehub.com/tag/enthalpy-15226" style="font-weight:bold;" target="_blank" title="Click to know more about ENTHALPY">ENTHALPY</a> of combustion`= ( 60.1)/( 1.250 ) xx 114 kJ mol^(-1)=5481.1kJ mol^(-1)`</body></html>