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Author Question: A rainbow is a result of: a. the Huygens Effect. c. dispersion. b. different color droplets of ... (Read 74 times)

jeatrice

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on: Jul 28, 2018
A rainbow is a result of:
 a. the Huygens Effect.
  c. dispersion.
  b. different color droplets of water.
  d. interference.

Question 2

A pressure of 2.0  10-7 mm of Hg is achieved in a vacuum system. How many gas molecules are present per liter volume if the temperature is 293 K? (760 mm of Hg = 1 atm, R = 0.0821 L  atm/mol  K, and NA = 6.02  1023)
 a. 16  1018
  c. 3.3  1012
  b. 6.6  1012
  d. 3.4  109


Ahnyah

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


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