1 / 7

To understand the general properties of energy To understand the concepts of temperature and heat

Objectives. To understand the general properties of energy To understand the concepts of temperature and heat To understand the direction of energy flow as heat. A. The Nature of Energy. Energy is the ability to do work or produce heat. Kinetic energy Energy of motion

ria-le
Download Presentation

To understand the general properties of energy To understand the concepts of temperature and heat

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Objectives • To understand the general properties of energy • To understand the concepts of temperature and heat • To understand the direction of energy flow as heat

  2. A. The Nature of Energy • Energy is the ability to do work or produce heat. Kinetic energy Energy of motion E = ½ mv2 Potential energy Energy of position

  3. A. The Nature of Energy • Law of conservation of energy • Energy can be converted from one form to another but can neither be created or destroyed.

  4. B. Temperature and Heat • Temperature is a measure of the random motions of the components of a substance. Hot water Cold water (90. oC) (10. oC)

  5. B. Temperature and Heat • Heat is a flow of energy between two objects due to a temperature difference between the objects. • Heat is the way in which thermal energy is transferred from a hot object to a colder object. Hot water Cold water (90. oC) (10. oC) Water Water (50. oC) (50. oC)

  6. C. Exothermic and Endothermic Processes • System – part of the universe on which we focus attention • Surroundings – everything else in the universe

  7. C. Exothermic and Endothermic Processes • Exothermic – energy flows out of the system (feels HOT) • Endothermic – energy flows into the system (feels COLD)

More Related