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

Author Question: The movement of gas molecules from an area of high concentration to one of lower concentration ... (Read 47 times)

joblessjake

  • Hero Member
  • *****
  • Posts: 555
on: Jul 16, 2018
The movement of gas molecules from an area of high concentration to one of lower concentration describes the property of which of the following?
 
  a. Osmosis c. Diffusion
  b. Effusion d. Suspension

Question 2

The partial pressure of oxygen when there is 25 oxygen in a gas mixture at an atmospheric pressure of 760 mm Hg is ____ mm Hg.
 
  a. 190 c. 1900
  b. 30.4 d. 159.6


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fdliggud

  • Sr. Member
  • ****
  • Posts: 366
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Diffusion is movement of molecules from areas of high concentrations to low concentrations. Effusion refers to the seepage or loss of blood through torn blood vessels. Osmosis describes the movement of water across a semipermeable membrane from a less-concentrated to a more-concentrated area. Suspensions are mixtures of solutions with undissolved particles or mol-ecules.

Answer to Question 2

ANS: A
Partial pressure of oxygen =  oxygen  barometric pressure, or 0.25  760 mm Hg = 190 mm Hg.


joblessjake

  • Member
  • Posts: 555
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

rachel

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr (a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr
The “Infertility Belt” In certain countries in Central Africa, infertility rates are as high as 30% The “Infertility Belt” In certain countries in Central Africa, infertility rates are as high as 30%
The diminishing effects on body weight of a low-calorie diet and a high-calorie diet. The diminishing effects on body weight of a low-calorie diet and a high-calorie diet.
Apply circular friction to the area of the head around the base of the ears. Apply circular friction to the area of the head around the base of the ears.
Types of Movement at Synovial Joints Types of Movement at Synovial Joints
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library