This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An adiabatic process occurs when A) no thermal energy enters or leaves the system. B) thermal ... (Read 422 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
on: Jul 29, 2018
An adiabatic process occurs when
 
  A) no thermal energy enters or leaves the system.
  B) thermal energy leaving a system is greater than thermal energy entering a system.
  C) thermal energy leaving a system is less than thermal energy entering a system.
  D) none of these

Question 2

At the same level and temperature in the atmosphere, is moist air lighter or heavier than dry air?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: Moist air is lighter Think of the thundercloud where warm moist air continues to rise upward until it reaches the point where it can no longer hold its moisture. Warm moist air rises more readily than warm dry air. Note also the chemical composition of moist air and dry air. Dry air is mainly N2 (atomic mass 28) and O2 (atomic mass 32). Moist air has N2 and O2, but it is also diluted with H2O (atomic mass 18). Because the increased percentage of water molecules in moist air means a decreased percentage of heavier nitrogen and oxygen molecules, moist air is lighter than dry air.


dbose

  • Hero Member
  • *****
  • Posts: 597
Reply #2 on: Jul 29, 2018
Thank you!


poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

The attachment process The attachment process
Hip Typically occurs as a result of a fall; with osteoporosis, hip fractures can occur as a result o Hip Typically occurs as a result of a fall; with osteoporosis, hip fractures can occur as a result o
Adenosine triphosphate (ATP) provides energy Adenosine triphosphate (ATP) provides energy
inflammatory system inflammatory system
Process flow diagram for Acetic Anhydride Plant Process flow diagram for Acetic Anhydride Plant
Components of the nervous system. Components of the nervous system.
Video: Nucleic acid digestion - brush border enzymes, end products & transport mechanism

For a complete list of videos, visit our video library