1 / 5

The Combined Gas Law

The Combined Gas Law. When measured at STP, a quantity of gas has a volume of 500 dm 3 . What volume will it occupy at 0 o C and 93.3 kPa?. (101.3 kPa) x (500 dm 3 ) = (93.3 kPa) x (V 2 ). 273 K. 273 K. (101.3) x (500) = (93.3) x (V 2 ). P 1 = 101.3 kPa T 1 = 273 K

lundj
Download Presentation

The Combined Gas Law

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The Combined Gas Law When measured at STP, a quantity of gas has a volume of 500 dm3. What volume will it occupy at 0 oC and 93.3 kPa? (101.3 kPa) x (500 dm3) = (93.3 kPa) x (V2) 273 K 273 K (101.3) x (500) = (93.3) x (V2) P1 = 101.3 kPa T1 = 273 K V1 = 500 dm3 P2 = 93.3 kPa T2 = 0 oC + 273 = 273 K V2 = X dm3 V2 = 542.9 dm3

  2. P T Gay-Lussac’s Law The pressure and absolute temperature (K) of a gas are directly related • at constant mass & volume Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  3. P T Gay-Lussac’s Law The pressure and absolute temperature (K) of a gas are directly related • at constant mass & volume Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  4. P1V1 T1 P2V2 T2 = Combined Gas Law P T V T PV T PV = k (COMBINED GAS LAW) (Gay-Lussac’s LAW) (CHARLES’ LAW) (BOYLE’S LAW) P1V1T2 =P2V2T1 Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  5. Gas Law Calculations Boyle’s Law PV = k Charles’ Law V T = k P and V change n, R, T are constant Ideal Gas Law PV = nRT T and V change P, n, R are constant P, V, and T change n and R are constant Combined Gas Law PV T = k

More Related