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Review items for Major Test: Heat/Temperature & Phase Change

 

see Gas Wars for gas law problems 

see sample Heat test questions  and more samples at:  Heat Quiz 2

 calorimeter                  pressure                                          liquefaction

radiation                       heat of combustion                    bonds

calories                           quantity of heat lab                  gas pressure

conduction                   plasma                                          C02 fire extinguisher

convection                    elastic collision                            evaporation

ice melting                     inelastic collision                          thermos bottle

heating water              atmospheric pressure                 thermal equilibrium

steam                              gas laws                                          thermal expansion

temperature                  chemical changes                      heat of solutions lab

kinetic energy                 physical changes                       thermometers

specific heat                   chemical properties                   temperature scales

heat flow                          physical properties                      Q = m x Dt x cp

heat exchange               water   2H2 + O2                          solid

thermostat                       endothermic                                 liquid

condensation                   exothermic                                    gas

vaporization                     boiling water

gas                                      intermolecular forces

diffusion                             electrolysis

potential energy            electrolyte

 

Short Answer Questions - Heat and Temperature

  1. Explain latent heat (use water as an example).  Give quantitative examples and clearly explain how intermolecular forces are involved during these changes.
  1. Discuss how specific heat capacity might be used to identify an unknown metal sample.
  1. Compare and contrast endothermic and exothermic chemical reactions.
  1. Compare and contrast kinetic and potential energy, using as many practical examples as possible.
  1. Using examples, explain fully elastic and inelastic collisions.  Try to include some of the problems these concepts cause in science classes.  Include momentum in your discussion.
  1. Describe how a liquid thermometer is made and how it could be calibrated without another thermometer.
  1. Explain how chemical and physical properties might be used to identify an unknown substance.  Pick one common substance and give physical/chemical details for it.
  1. Discuss the way in which gas exerts pressure on the walls of its container.
  1. Explain the Kinetic-Molecular Theory of Gases as it relates to ordinary life.  Include examples of Boyle’s Law and Charles’ Law in your explanation.
  1. Compare intermolecular forces with chemical bonds within molecules.
  1. Discuss atmospheric pressure and how it relates to gas laws, boiling points, and vapor pressures.
  1. Explain how conduction, convection, and radiation might occur when using our calorimeters.  Compare our calorimeters with good Thermos bottles.
  1. Explain fully melting-freezing point theory.
  1. Explain fully boiling point theory and related phenomena such as elevation changes, pressure cookers, super heating, and vapor pressure
 

Page Last Updated: Friday March 02, 2007           Webmaster: Larry Jones                 Pickens County School District