Quiz 11 - Ch11_PracticeproblemsQuestionMC#18(Points:6.66) A...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Ch11_Practice problems Question MC #18   (Points: 6.66)      A mass of 1.663 g of an unknown gas is introduced into an evacuated 2.00 L flask. If the pressure in the flask is 0.544 atm at 78 ° C, which of the following gases might be in the flask? ( R = 0.08206 L·atm/mol·K) 1.  NH 3 2.  N 2 O 3.  HCl 4.  N 2 5.  C 2 H 2 . Ch11_Practice problems Question MC #3 (Points: 6.66)   If the volume of a confined gas is quadrupled while its temperature remains constant, what change will be observed? 1. The average velocity of the molecules will quadruple. 2. The pressure of the gas will quadruple. 3. The density of the gas will decrease to 1/2 its original value. 4. The average velocity of the molecules will double. 5. The pressure of the gas will decrease to 1/4 its original value. Ch11_Practice problems Question  MC #32   (Points: 6.66)      The average velocity of a gas molecule is 1.  directly proportional to the gas constant, R . 2.  directly proportional to the square root of its mass.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3.  directly proportional to the square root of its temperature in K. 4.  inversely proportional to the square of its mass. 5.  inversely proportional to its kinetic energy. Ch11_Practice problems Question  MC #10   (Points: 6.66)      What volume of CO 2 at 15 ° C and 1.50 atm contains the same number
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

Quiz 11 - Ch11_PracticeproblemsQuestionMC#18(Points:6.66) A...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online