1. How does the law of the conservation of energy relate to the first law of the
ID: 1567477 • Letter: 1
Question
1. How does the law of the conservation of energy relate to the first law of thermodynamics?
2. Why does the air coming out of your mouth feel the way it does if you blow on your palm?
3. Where is Dr. Hewitt able to hold his hand above the nozzle of the pressure cooker without getting burned by the steam, and why?
a. Adding heat flow to the law of conservation of energy gives the first law of thermodynamics. b. They are the same. c. Adding internal energy to the law of conservation of energy gives the first law of thermodynamics. d. Adding work and heat flow to the law of conservation of energy gives the first law of thermodynamics.Explanation / Answer
1.The answer is b) as the the intrinsic meaning of the first law of Thermodyanamics lies in the conservation of energy.
2. The answer is b) as to blow on the palm the mouth has to be puckered after which the air expands.
3. The answer is b) as the water vapour once it comes out of the nozzle expands and cools.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.