Download presentation

Presentation is loading. Please wait.

Published byJena Parham Modified over 3 years ago

2
Combined Gas Law

3
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? P 1 = 101.3 kPa T 1 = 273 K V 1 = 500 dm 3 P 2 = 93.3 kPa T 2 = 0 o C + 273 = 273 K V 2 = X dm 3 (101.3 kPa) x (500 dm 3 ) = (93.3 kPa) x (V 2 ) 273 K V 2 = 542.9 dm 3 (101.3) x (500) = (93.3) x (V 2 )

4
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? P 1 = 101.3 kPa T 1 = 273 K V 1 = 500 dm 3 P 2 = 93.3 kPa T 2 = 0 o C + 273 = 273 K V 2 = X dm 3 = P 2 x V 2 T 2 P 1 x V 1 T 1 (101.3 kPa) x (500 dm 3 ) = (93.3 kPa) x (V 2 ) 273 K V 2 = 542.9 dm 3

5
The pressure and absolute temperature (K) of a gas are directly related –at constant mass & volume P T Gay-Lussacs Law Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem Temperature (K) Pressure (torr) P/T (torr/K) 248691.62.79 273760.02.78 298828.42.78 3731,041.22.79

6
Gay-Lussacs Law P T Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem The pressure and absolute temperature (K) of a gas are directly related –at constant mass & volume

7
= kPV PTPT VTVT T Combined Gas Law P1V1T1P1V1T1 = P2V2T2P2V2T2 P 1 V 1 T 2 = P 2 V 2 T 1 Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem (BOYLES LAW)(CHARLES LAW)(Gay-Lussacs LAW)(COMBINED GAS LAW)

8
The Combined Gas Law Keys The Combined Gas Law http://www.unit5.org/chemistry/GasLaws.html

9
Gas Law Calculations Boyles Law PV = k Boyles Law PV = k Charles Law V T Charles Law V T Combined Gas Law PV T Combined Gas Law PV T Ideal Gas Law PV = nRT Ideal Gas Law PV = nRT = k T and V change P, n, R are constant P, V, and T change n and R are constant P and V change n, R, T are constant

Similar presentations

OK

The Ideal Gas Law Section 11.3. Standard Molar Volume of a Gas Assume the gas is an ideal gas Standard molar volume of a gas: the volume occupied by one.

The Ideal Gas Law Section 11.3. Standard Molar Volume of a Gas Assume the gas is an ideal gas Standard molar volume of a gas: the volume occupied by one.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Waters view ppt on ipad Ppt on thermal power plant engineering Ppt on rf remote control robot Ppt on sports day logo Download ppt on historical places in india Ppt on object-oriented concepts c# Ppt on 5 star chocolate Ppt on db2 introduction letter Ppt on viruses and bacteria test Ppt on office 365