What do you know about thermochemistry?

Survey questions to access prior knowledge of Thermochemistry vocabulary and content.
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  1. What is specific heat capacity?
    The amount of heat absorbed by an object.
    The amount of heat required to raise the temp. of a given mass of an object.
    The capacity that an object has to give off heat.


  1. Which substance has the highest heat capacity?
    Iron
    Water
    Wood


  1. Heat of fusion refers to:
    The heat required to turn a substance to a vapor
    The heat required to melt a substance
    The removal of heat required to turn a substance to a liquid.


  1. An exothermic reaction is:
    a violent reaction
    a reaction which gives off more energy than it absorbs
    a reaction which absorbs more energy than it releases


  1. Which of the following has more calories per gram?
    Fats
    protein
    carbohydrate


  1. What is enthalpy?
    A measure of how quickly a chemical reaction occurs
    The amount of energy needed to activate a chemical reaction.
    The total energy content of a system


  1. What is entropy?
    Energy trapped in a substance.
    A measure of the randomness or disorder of a system.
    Energy which is released by a system.


  1. What is free energy?
    Takes enthalpy and entropy into account.
    Wasted energy.
    Energy consumed in a chemical reaction.


  1. What is necessary for all chemical and physical changes?
    Energy
    Temperature
    A catalyst


  1. Would you rather discuss vocabulary this way or with a lecture?
    This way
    With a lecture


  1. Temperature is a measure of:
    the total energy of a substance's particles
    the average kinetic energy of a substance's particles
    the potential energy of a substance's particles





Mr. Pronschinske
Science Instructor
Arcadia High School
Arcadia, WI