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

Author Question: Who was the person that was instrumental in developing the first CFCs? What will be an ideal ... (Read 18 times)

chandani

  • Hero Member
  • *****
  • Posts: 541
on: Jul 26, 2018
Who was the person that was instrumental in developing the first CFCs?
 
  What will be an ideal response?

Question 2

How many pounds of refrigerant must flow through a 4-ton evaporator each minute if each pound has an enthalpy of 50.0 Btu/lb?
 
  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

strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 26, 2018
Answer to Question 1

Thomas Midgley

Answer to Question 2

1 ton = 200 BTU/minute. 4 x 200 BTU/minute = 800 BTUs/minute 800 BTUs/minute/50 BTUs/lb = 12.6 lbs/minute


chandani

  • Member
  • Posts: 541
Reply 2 on: Jul 26, 2018
Excellent

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
A person with a defective "P" gene might only have it effect the Hair A person with a defective "P" gene might only have it effect the Hair
Two methods by which cells migrate in the developing neural tube: somal translocation and ... Two methods by which cells migrate in the developing neural tube: somal translocation and ...
Share of Human Capital in Wages in Developing Countries Share of Human Capital in Wages in Developing Countries
Life Expectancy in Developing Countries Life Expectancy in Developing Countries
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library