Question 1:
What is the process called when a substance changes from a liquid to a gas?
Explanation: The correct answer is B) Vaporization. Vaporization is the process in which a substance changes from the liquid phase to the gaseous phase. It occurs when the temperature of the substance exceeds its boiling point.
Question 2:
Which of the following is an endothermic process?
Explanation: The correct answer is A) Vaporization. Vaporization is an endothermic process as it requires the absorption of heat energy to change a substance from the liquid phase to the gaseous phase. It occurs when the temperature of the substance exceeds its boiling point.
Question 3:
Which of the following is an exothermic process?
Explanation: The correct answer is B) Condensation. Condensation is an exothermic process as it releases heat energy when a substance changes from the gaseous phase to the liquid phase. It occurs when the temperature of the substance is lowered below its boiling point.
Question 4:
At which point does the phase transition from gas to liquid occur?
Explanation: The correct answer is D) Condensation point. The phase transition from gas to liquid occurs at the condensation point of a substance. At this temperature, the substance loses enough thermal energy to change its state from gas to liquid.
Question 5:
Which process involves the direct phase transition from gas to solid without going through the liquid phase?
Explanation: The correct answer is A) Sublimation. Sublimation is the process in which a substance directly transitions from the gas phase to the solid phase without going through the liquid phase. It occurs when the temperature and pressure conditions allow the gas to solidify without condensing into a liquid state.
- Click to Check the published quizzes on various Categories
- Click to Practice various fundamentals of PMP Certification
- Click to Check Published courses on Piping Engineering
- Click to check Video Liberary (with more than 600+ Videos)