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Introduction to Thermochemistry

Quiz by Ebonee Wheeler

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7 questions
Show answers
  • Q1
    What is thermochemistry?
    The study of temperature changes in chemical reactions
    The study of chemical bonding
    The study of the energy changes that accompany chemical reactions
    The study of molecular structure
    30s
  • Q2
    What is the difference between exothermic and endothermic reactions?
    Exothermic reactions involve the breaking of chemical bonds, while endothermic reactions involve the formation of chemical bonds
    Exothermic reactions occur spontaneously, while endothermic reactions require an input of energy to occur
    Exothermic reactions absorb heat, while endothermic reactions release heat
    Exothermic reactions release heat, while endothermic reactions absorb heat
    30s
  • Q3
    What is the difference between heat and temperature?
    Heat is the measure of the average kinetic energy of particles in a substance, while temperature is the transfer of energy due to a temperature difference
    Heat is the transfer of energy due to a temperature difference, while temperature is a measure of the average kinetic energy of particles in a substance
    Heat and temperature are both measures of the amount of energy contained in a substance
    Heat and temperature are the same thing
    30s
  • Q4
    What is the difference between a system and a surroundings?
    A system and surroundings are the same thing
    A system is a closed container, while the surroundings are the open air
    A system is the part of the universe being studied, while the surroundings are everything outside the system
    A system is everything outside the surroundings, while the surroundings are what is being studied
    30s
  • Q5
    Which of the following is an example of an exothermic reaction?
    Boiling water
    Melting ice
    Mixing baking soda and vinegar
    Burning wood
    30s
  • Q6
    In an exothermic reaction, the products have ________________ energy than the reactants.
    Less
    It depends on the specific reaction
    The same
    More
    30s
  • Q7
    In an endothermic reaction, the products have ________________ energy than the reactants.
    The same
    More
    Less
    It depends on the specific reaction
    30s

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