Subjects: Chemistry

Shows how the energy content of food can be determined using calorimetry. Defines specific heat capacity and heat capacity. Students design and build a calorimeter and perform an experiment to determine the energy content of a peanut.

Graphs are generated to illustrate kinetic and potential energy changes to states of matter. Molecular animation further illustrates this concept. Defines molar enthalpy terms for phase changes and discusses real-life applications.

Explains how energy released by one substance equals energy absorbed by another. Calorimetry experiments show the amount of energy transferred when hot water is added to cold. Experiments determine molar heats of endothermic and exothermic reactions.

Determines the molar enthalpy of a phase change by assuming that kinetic and potential energy changes of a substance undergoing a temperature and phase change are equal to kinetic energy of the calorimeter.

Explains enthalpy changes in terms of rearrangement of chemical bonds and examines how to graphically determine enthalpy change for a reaction using known enthalpy changes for other reactions.

Shows how enthalpy changes can be communicated: as a term in an equation; as a delta H or molar delta H notation; and as a potential energy diagram. Demonstrates Hess’s Law using calorimetry, potential energy diagrams and molar enthalpies of formation.

Determines the molar enthalpy of neutralization of sodium hydroxide using calorimetry. The experimental value is then compared to the actual value that was determined using Hess’s Law.

Provides additional information, experiments and problems on concepts presented in the video programs.

Provides additional information, experiments and problems on concepts presented in the video programs.