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MCQs

Total Questions : 368 | Page 35 of 37 pages
Question 341. 10 J of heat and 5 J of work are supplied to the system, what is the change in internal energy?
  1.    5 J
  2.    10 J
  3.    15 J
  4.    20 J
 Discuss Question
Answer: Option C. -> 15 J
Answer: (c).15 J
Question 342. 5 J of heat is taken out of the system and 20 J of work is done on the system, what is the change in internal energy of the system?
  1.    5 J
  2.    10 J
  3.    15 J
  4.    20 J
 Discuss Question
Answer: Option C. -> 15 J
Answer: (c).15 J
Question 343. 5 J of work is done by the system, if the change in internal energy of the system is 10 J, what is the heat supplied to the system?
  1.    – 5 J
  2.    5 J
  3.    – 15 J
  4.    15 J
 Discuss Question
Answer: Option D. -> 15 J
Answer: (d).15 J
Question 344. Which process allows complete conversion of mechanical energy?
  1.    Irreversible
  2.    Reversible
  3.    None of the mentioned
  4.    Both of the mentioned
 Discuss Question
Answer: Option B. -> Reversible
Answer: (b).Reversible
Question 345. Mechanical energy satisfy which of the following?
  1.    Completely Convertible
  2.    Non-convertible
  3.    Partially convertible
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Completely Convertible
Answer: (a).Completely Convertible
Question 346. Which of the following is not an example of mechanical energy?
  1.    Kinetic energy
  2.    Potential energy
  3.    Internal energy
  4.    Work
 Discuss Question
Answer: Option C. -> Internal energy
Answer: (c).Internal energy
Question 347. Which of the following allows complete conversion of mechanical energy?
  1.    Frictionless process
  2.    Dissipative process
  3.    Mixing of components
  4.    All of the mentioned
 Discuss Question
Answer: Option A. -> Frictionless process
Answer: (a).Frictionless process
Question 348. The mechanical energy balance is the product of equation of motion and which of the following?
  1.    Mass
  2.    Velocity
  3.    Volume
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Velocity
Answer: (b).Velocity
Question 349. What is the heat transferred from 2 mole of the system if the output sensible heat is 3 J/mole, input sensible heat is 2 J/mole, and heat of solution is 2 J/mole?
  1.    2 J
  2.    3 J
  3.    5 J
  4.    6 J
 Discuss Question
Answer: Option D. -> 6 J
Answer: (d).6 J
Question 350. What is the heat transferred from 5 mole of the system if the output sensible heat is 1 J/mole, input sensible heat is 3 J/mole, and heat of solution is 4 J/mole?
  1.    0
  2.    5 J
  3.    10 J
  4.    20 J
 Discuss Question
Answer: Option C. -> 10 J
Answer: (c).10 J

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