{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Scan_Doc0096 - 188 Chapter Five Gases How do we get there...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
188 Chapter Five Gases N2 Ar H2 1 CH 4 1 Figure 5.10 These balloons each hold 1.0 L gas at 25°C and 1 atm. Each balloon contains 0.041 mol gas, or 2.5 x 10 22 molecules. How do we get there? What is Charles's law (in aform useful with our knowns)? Vi = V 2 r. T2 What is V 2 ? ( T2) (311 K) V 2 = T i Vi = 288 K 2.58 L = 2.79 L Reality Check: The new volume is greater than the original volume, which makes phys- ical sense because the gas will expand as it is heated. SEE EXERCISE 5.42 Avogadro's Law In Chapter 2 we noted that in 1811 the Italian chemist Avogadro postulated that equal vol- umes of gases at the same temperature and pressure contain the same number of "parti- cles." This observation is called Avogadro's law, which is illustrated by Fig. 5.10. Stated mathematically, Avogadro's law is V= an where V is the volume of the gas, n is the number of moles of gas particles, and a is a proportionality constant. This equation states that for a gas at constant temperature and pressure, the volume is directly proportional
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern