Near sea level, the atmosphere is composed of 78% nitrogen and 20% oxygen. Other trace gases make up the remaining 2%. At room temperature, consider the following statements.
i. all the gas molecules move at the same speed.
ii. the nitrogen gas molecules, on average, move faster than oxygen molecules.
iii. the nitrogen gas molecules, on average, move faster than the oxygen molecules.
iv. some nitrogen gas molecules could move faster than some of the oxygen gas molecules.
v. some nitrogen gas molecules could move slower than some of the oxygen gas molecules.
Which of these are correct?
a. i
b. ii & iv
c. iii & iv
d. ii, iv, & v
e. all are correct
Answers: 3
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 17:30, latezwardjr15
In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
Answers: 2
Chemistry, 22.06.2019 20:40, ohgeezy
Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°
Answers: 1
Do you know the correct answer?
Near sea level, the atmosphere is composed of 78% nitrogen and 20% oxygen. Other trace gases make up...
Questions in other subjects:
Health, 27.08.2019 18:20
Mathematics, 27.08.2019 18:20
