Chapter 14 Gases Ideal Gas Law PVn RT
- Slides: 33
Chapter 14 Gases
Ideal Gas Law PV=n. RT Describes the physical behavior of an ideal gas in the following terms: pressure, volume, temperature, and number of mols.
Ideal Gas Law and understanding units • PV= n. RT • P = Pressure (atmospheres or atm) • V = Volume (Liters or L) • n = moles • R = Ideal Gas Constant • T = Temperature (Kalvin or K)
R- Ideal Gas Constant
Conversion Factors • P= atm • V= L • n= mol • T= K 101. 3 k. Pa = 1 atm 1000 m. L = 1 L g mol conversion Degrees C + 273 K
Avogadro’s Principle • Rule only applies at ideal conditions (Standard Temperature and Pressure or STP) • States that equal volumes of gases at the same temperature and pressure contain equal numbers of particles.
Molar Volume •
Using the Ideal Gas Law • What do you really need to know to use the ideal gas law? 1. Use the correct units 2. Use conversion factors 3. Algebra
Ideal Gas Law Examples (PV = n. RT) • 6. 2 liters of an ideal gas are contained at 3. 0 atm and 37 °C. How many moles of this gas are present? • P= 3 atm • V= 6. 2 L • n= ? • R= Ideal Gas Constant= 0. 0821 • T= 37 degrees C = 37+273= 310 K
Ideal Gas Law Examples • You fill a rigid metal container with a volume of 20. 0 L with nitrogen gas to a pressure of 197 atm at 301 K. How many mols of gas are present in the container?
Changing Conditions Problems Where did the Ideal Gas Law come from?
Changing Conditions •
Changing Conditions • What can you do when variable are held constant during changing conditions?
Boyles Law Relationship Between Pressure and Volume P 1 V 1 = P 2 V 2
Boyles Law • Used to find volumes of gases • States the volume of a fixed amount of gas held at a constant temperature varies inversely with the pressure. • Key Points • Constant temperature • Fixed amount of gas (fixed number of molecules) • What does “Inversely” mean?
Boyles Law
Boyles Law Equation •
Boyles Law Example • A gas tank holds 2785 L of propane, C 3 H 8, at 1. 09 atm. What is the volume of the propane at standard pressure?
Boyles Law Example • A balloon contains 7. 2 L of He. The pressure is reduced to 2. 00 atm and the balloon expands to occupy a volume of 25. 1 L. What was the initial pressure exerted on the balloon?
Charles Law
Charles Law •
Charles Law
Charles Law Examples • A 600 m. L sample of nitrogen is heated from 27 °C to 77 °C at constant pressure. • What is the final volume in L?
Gay- Lussac’s Law
Gay- Lussac’s Law •
Gay- Lussac’s Law
Gay- Lussac’s Law Example • A 20 -liter cylinder contains 6 atmospheres (atm) of gas at 27 C. What would the pressure of the gas be if the gas was heated to 77 C?
Combined Gas Law
Combined Gas Law •
Combined Gas Law
Combined Gas Law Example • Find the volume of a gas at STP when 2. 00 liters is collected at 0. 98684 atm and 25. 0 °C.
- Ideal gas equation graph
- Pvn hub
- Pseudo reduced specific volume
- Imaginary gas
- Gas law
- Sutherland's law
- Difference between ideal gas and real gas
- Unit of pressure
- How to find initial pressure in boyle's law
- Ideal gas equation
- Which equation agrees with the ideal gas law?
- Deviation from ideal gas law
- Pv nrt units
- Deviations from ideal gas law
- Density in ideal gas law
- State ideal gas equation
- Pv=nrt units
- Volume of a gas formula
- Ideal gas law formula
- How to find density in ideal gas law
- Ideal gas law to find density
- Ideal gas law entropy
- A student collects oxygen gas by water displacement
- Chapter 13 gas laws worksheet answer key
- Empirical derivation of gas equation
- Characteristics of ideal gas
- Avogadro's law
- Combined gas law definition
- Boyle's law example problem
- Ideal gas law powerpoint
- Ideal gas law
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- Ideal gas law poem
- Ideal gas law constant