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General Science

ENTROPY MCQs

Total Questions : 5

Question 1. Is cellular respiration an Endothermic or an Exothermic reaction? [Hint: body is warm]
  1.    Endothermic
  2.    Exothermic
 Discuss Question
Answer is Option B. -> Exothermic
Question 2. Which state of matter has the greatest motion and least orderly arrangement?
  1.    solid
  2.    liquid
  3.    gas
  4.    aqueous
 Discuss Question
Answer is Option C. -> gas
Question 3. Which phase of matter has the greatest motion and least orderly arrangement?
  1.    solid
  2.    liquid
  3.    gas
  4.    All of above
 Discuss Question
Answer is Option C. -> gas
Question 4. The entropy will usually increase when
  1.    a molecule is broken into two or more smaller molecules
  2.    a reaction occurs that results in an increase in the number of moles of gas
  3.    a solid changes to a liquid
  4.    all of these
 Discuss Question
Answer is Option D. -> all of these
Question 5. Which of these processes represents a decrease in entropy?
  1.    sublimation of CO2
  2.    boiling water
  3.    condensation of steam on cold glass
  4.    NaCl dissolving in water
 Discuss Question
Answer is Option C. -> condensation of steam on cold glass
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