Quiz No.3 '' Heat Content ''

16 Questions | Total Attempts: 96

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Quiz No.3

Senior One


Questions and Answers
  • 1. 
    State whether each of the following are exothermic or endothermic. a-1. H + Cl ---------- HCl                            H=-432 kJ
    • A. 

      Exo

    • B. 

      Endo

  • 2. 
    B-. H2O vapour à H2O liquid
    • A. 

      ENdo

    • B. 

      Exo

  • 3. 
     When two chemicals mix their temperature rises
    • A. 

      Exo

    • B. 

      Endo

  • 4. 
     Plants take in light energy for photosynthesis
    • A. 

      Exo

    • B. 

      Endo

  • 5. 
    What does (delta)H stand for 
    • A. 

      The specific heat of substance

    • B. 

      Heat of reaction for chemical reaction

    • C. 

       one calorie given off by a reaction

  • 6. 
    This reaction show the burning of methane in oxygen   Is the reaction exothermic or endothermic overall?
    • A. 

      Exo 

    • B. 

      Endo

  • 7. 
      Consider the thermal energy transfer during a chemical process. When heat is transferred to the system, the process is said to be _______ and the sign of H is ________.
    • A. 

      Exo , positive 

    • B. 

      Endo , positive 

    • C. 

      Exo, negative

  • 8. 
    As element increase its stability , its reaction will be ....................
    • A. 

      Endothermic 

    • B. 

      Exothermic 

    • C. 

      No answer

  • 9. 
    Changing of graphite into diamond is difficult but it undergo type of ................reaction
    • A. 

      Exothermic 

    • B. 

      Endothermic 

  • 10. 
    Which arrangement is right according to higher heat content ..(H ice , H water , Hvapour)
    • A. 

      Ice ,higher than vapour , higherthan  ice

    • B. 

      Vap higherthan ice lessthan  water

    • C. 

      Ice higherthan water higherthan vapour

    • D. 

      No answer

  • 11. 
    Specific heat is sum of all energies in 1mole of any matter
    • A. 

      True

    • B. 

      False

  • 12. 
    Determination of heat content practically is so difficult and has high scientific error
    • A. 

      True

    • B. 

      False

  • 13. 
    Heat content of compound is differ from heat content of element 
    • A. 

      True

    • B. 

      False

  • 14. 
    Reaction of baking powder is Exothermic as it take heat from glass after broken the crystal lattice of molecules 
    • A. 

      True

    • B. 

      False

  • 15. 
    Heat content of reaction Never Equal Zero
    • A. 

      True

    • B. 

      False

  • 16. 
     Add the bicarbonate soda gradually to avoid overflowing foam and stirring with the thermometer is this reaction is Endothermic Or Exothermic Reaction ? 
    • A. 

      Endothermic Reaction

    • B. 

      Exothermic Reaction 

    • C. 

      Not related answer 

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