Thermochemistry

Objectives

• Explain how energy, heat, and work are related.
• Classify processes as either exothermic or endothermic
• Identify the units used in measuring heat flow
• Distinguish between heat capacity and specific heat

Vocabulary: thermochemistry - potential energy - heat - system - surroundings - law of conservation of energy - endothermic - exothermic - heat capacity - specific heat

Objectives

• Describe now calorimeters are used to measure heat flow
• Construct thermochemical equations
• Solve for enthalpy changes in chemical reactions by using heats of reaction
• Classify the enthalpy change that occurs when a substance melts, freezes, boils, condenses, or dissolves
• Solve for enthalpy change under the above processes

Vocabulary: calorimetry - calorimeter - enthalpy - thermochemical equation - heat of reaction - heat of combustion - heating and cooling curves

Objectives

• State Hess' law of heat summation and describe how it is used in chemistry
• Solve enthalpy changes by using Hess' law or standard heats of formation

Vocabulary: Hess' law of heat summation - standard heat of formation

Rutgers College Prep - Thermochemistry video pdf

Rutgers College Prep - Calorimetry video pdf

Rutgers College Prep - Hess' Law video pdf