11-2-heat-specific-heat-and-heat-transfer_summary

This section is about heat, specific heat, and heat transfer, with a focus on explaining these concepts and distinguishing between conduction, convection, and radiation. The learning objectives include explaining heat, heat capacity, and specific heat, and solving problems involving specific heat and heat transfer. The section covers the principles of heat transfer and how changes in temperature are related to the transfer of heat. The heat transferred to or from a substance depends on its change in temperature, mass, and the specific heat of the substance. Specific heat is the amount of heat necessary to change the temperature of 1.00 kg of a substance by 1.00 ºC. The three methods of heat transfer discussed are conduction, convection, and radiation. Conduction is heat transfer through direct physical contact, such as the heat transferred between the electric burner of a stove and the bottom of a pan. Convection is heat transfer by the movement of a fluid, such as in a pot boiling on the stove or in thunderstorms where hot air rises. Radiation is a form of heat transfer that occurs when electromagnetic radiation is emitted or absorbed, and no medium is required for heat to be transferred. The section also includes a lab activity to investigate the specific heat capacity of different substances and misconception alerts to help students avoid common errors in understanding specific heat units and the formula for specific heat. Additionally, the section ends with some worked examples and practice problems to apply the concepts learned.