Combustion of Sucrose in a Bomb Calorimeter
Not what you're looking for?
1. Combustion of 2.016 grams of solid sucrose (C6H12O6) at 25 º C in a bomb calorimeter with heat capacity 9550 J K -1 gives a temperature rise of 3.282 º C.
a) Write the balanced equation for the combustion of sucrose
b) What is the work done by the system?
c) What is the heat change per mole of sucrose for the reaction?
d) Find the change in internal energy per mole of solid sucrose for this process
Purchase this Solution
Solution Summary
The solution shows how data from a bomb calorimeter can be used to calculate the internal energy of sucrose.
Solution Preview
1. Combustion of 2.016 grams of solid sucrose (C6H12O6) at 25 º C in a bomb calorimeter with heat capacity 9550 J K -1 gives a temperature rise of 3.282 º C.
a) Write the balanced equation for the combustion of sucrose
b) What is the work done by the system?
c) What is the heat change per mole of sucrose for the reaction?
d) Find the change in internal energy per mole of solid sucrose for this process
Solution:
(a) The balanced equation for the combustion of C6H12O6 is:
C6H12O6 + 6 O2 6 H2O + 6 CO2 + ENERGY
(b) w = - PV where w = work and P = pressure and V = change in volume.
In a bomb calorimeter, volume does not change (unless it explodes! ). If there is no change in volume, V = 0, so work = 0.
(c) q(heat) = cT (heat capacity of calorimeter, T is change intemperature)
= 9550. J/K x 3.282 K
= 31340 J (absorbed by calorimeter) (4 significant figures)
Heat generated by ...
Purchase this Solution
Free BrainMass Quizzes
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.