Chapter 10 Quiz 2 - Chemistry

10 Questions | Total Attempts: 48

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Chapter 10 Quiz 2 - Chemistry

Questions and Answers
  • 1. 
    The SI unit of energy is the __________. (Do not use the abbreviation.)
  • 2. 
    The _______ is a unit of energy defined as the amount of heat needed to raise one gram of water by one degree Celsius.
  • 3. 
    The ____________ is the amount of energy required to raise one gram of a substance by one degree Celsius.
    • A. 

      Kelvin

    • B. 

      Specific heat

    • C. 

      Calorie

    • D. 

      Temperature

  • 4. 
    What is the symbol for enthalpy?
    • A. 

      E

    • B. 

      T

    • C. 

      H

    • D. 

      W

  • 5. 
    Mathematically, what does mean?
    • A. 

      Initial - final

    • B. 

      Final - initial

    • C. 

      Initial + final

    • D. 

      Final + initial

  • 6. 
    When the value of is negative, that means that a chemical reaction ___________.
    • A. 

      Is producing heat

    • B. 

      Is taking in heat

    • C. 

      Is spontaneous

    • D. 

      Is nonspontaneous

  • 7. 
    Entropy is defined as the _____________.
    • A. 

      Randomness of a system

    • B. 

      Heat required to complete a reaction

    • C. 

      Spontaneity of a chemical reaction

    • D. 

      Work a system is able to perform

  • 8. 
    The second law of thermodynamics states that ____________.
    • A. 

      Heat will always move to places of lower termperatures

    • B. 

      Energy can neither be created nor destroyed

    • C. 

      The mass of the universe is constant

    • D. 

      The entropy of the universe is always increasing

  • 9. 
    Energy will not disperse into areas of lower energy.
    • A. 

      True

    • B. 

      False

  • 10. 
    A positive denotes a system that has absorbed energy, resulting in higher potential energy of the products
    • A. 

      True

    • B. 

      False

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