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MCQs

Total Questions : 368 | Page 3 of 37 pages
Question 21. Heat Capacity of CO₂ is given by 12 + 3T + T², what is the enthalpy change from 0°C to 6°C?
  1.    169 J
  2.    198 J
  3.    244 J
  4.    360 J
 Discuss Question
Answer: Option B. -> 198 J
Answer: (b).198 J
Question 22. CP-T curve of H2 forms a rectangle of height 20 J/°C from 4°C to 5°C?
  1.    20 J
  2.    80 J
  3.    100 J
  4.    140 J
 Discuss Question
Answer: Option C. -> 100 J
Answer: (c).100 J
Question 23. Heat Capacity of water is given by 4 + T², what is the enthalpy change from 0°C to 3°C?
  1.    7 J
  2.    14 J
  3.    21 J
  4.    32 J
 Discuss Question
Answer: Option C. -> 21 J
Answer: (c).21 J
Question 24. CP-T curve covers 10 J from 2°C to 10°C, what is the enthalpy change?
  1.    10 J
  2.    20 J
  3.    80 J
  4.    100 J
 Discuss Question
Answer: Option A. -> 10 J
Answer: (a).10 J
Question 25. CP-T curve of CO₂ forms a rectangle of height 10 J/°C from 5°C to 10°C?
  1.    10 J
  2.    50 J
  3.    100 J
  4.    250 J
 Discuss Question
Answer: Option B. -> 50 J
Answer: (b).50 J
Question 26. What is the kinetic energy of an object of mass 10 Kg moving with Velocity 2 m/s?
  1.    10 J
  2.    20 J
  3.    40 J
  4.    50 J
 Discuss Question
Answer: Option B. -> 20 J
Answer: (b).20 J
Question 27. A stone is thrown up with a Velocity and comes down, what is the change in kinetic energy of stone?
  1.    Positive
  2.    Negative
  3.    Zero
  4.    Cannot say
 Discuss Question
Answer: Option C. -> Zero
Answer: (c).Zero
Question 28. What is the kinetic energy of an object of mass 2 Kg and Velocity 5 m/s?
  1.    20 J
  2.    25 J
  3.    35 J
  4.    50 J
 Discuss Question
Answer: Option B. -> 25 J
Answer: (b).25 J
Question 29. What is the specific kinetic energy of a fluid flowing at rate 0.1 m³/s and 1 m diameter pipe?
  1.    0.008 J/Kg
  2.    0.016 J/Kg
  3.    0.028 J/Kg
  4.    0.064 J/Kg
 Discuss Question
Answer: Option A. -> 0.008 J/Kg
Answer: (a).0.008 J/Kg
Question 30. A stone is release from a cliff and comes down, what is the change in kinetic energy of stone?
  1.    Positive
  2.    Negative
  3.    Zero
  4.    Cannot say
 Discuss Question
Answer: Option A. -> Positive
Answer: (a).Positive

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