Ch.6 - Thermochemistry WorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Sections
Internal Energy
Calorimetry
Hess's Law
Enthalpy of Formation
End of Chapter 6 Problems
Additional Practice
Units of Energy
Endothermic & Exothermic Reactions
Additional Guides
Enthalpy

Solution: A pure sample of pure (E)-2, 5-dimethyl-3-hexene (C 8H16) is combusted in a bomb calorimeter. If the combustion of 0.871 g of (E)-2, 5-dimethyl-3-hexene results in a rise in temperature from 25.66°C to 32.77°C, what is the heat capacity (in kJ/K) of the calorimeter? Report your answer to three significant figures. The heat of combustion for (E)-2, 5-dimethyl-3-hexene is -5275.50 kJ/mol.

Problem

A pure sample of pure (E)-2, 5-dimethyl-3-hexene (C 8H16) is combusted in a bomb calorimeter. 

If the combustion of 0.871 g of (E)-2, 5-dimethyl-3-hexene results in a rise in temperature from 25.66°C to 32.77°C, what is the heat capacity (in kJ/K) of the calorimeter? Report your answer to three significant figures. 

The heat of combustion for (E)-2, 5-dimethyl-3-hexene is -5275.50 kJ/mol.