« previous next »

Author Question: Which substance has the lowest surface tension? a. Water at 20 C c. Blood at 37 C b. Water at 37 ... (Read 184 times)

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
on: Jul 16, 2018
Which substance has the lowest surface tension?
 
  a. Water at 20 C c. Blood at 37 C
  b. Water at 37 C d. Ethyl alcohol at 20 C

Question 2

The surface tension of a liquid:
 
  a. does not vary with temperature. c. increases as tem-perature decreases.
  b. increases as tem-perature increases. d. decreases as tem-perature increases.


matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
See Table 1-2.

Answer to Question 2

ANS: D
The surface tension of any given liquid varies inversely with its temperature. Adding heat to a liquid causes the molecules to move more vigorously and break the bonds that are holding them in liquid form.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
Reply #2 on: Jul 16, 2018
Thank you :)


matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 16, 2018
Happy to help you


« previous next »
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Blood Circulation Blood Circulation
Whale in water Whale in water
water bear water bear
A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ... A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ...
Blood Oranges Blood Oranges
Blood Transfusion Blood Transfusion
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library