What Is The Cause Of Gas Pressure – Behavior of gases. Gas particles are in constant motion Collisions of these particles in the air causes pressure Pressure = force per unit of area or.

Gases respond to changes in pressure, temperature, and volume in predictable ways. Section 3: Behavior of gases K What I know W What I want to find out.

What Is The Cause Of Gas Pressure

Chapter 11 Behavior of gases. Warm-up #1 How much force do you think it would take to crush this railroad tank car? Stay informed.

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The three main states of matter that we encounter every day are: gas, liquid and solid. We will look at the first state of matter, gas. Gases can be compressed,

General properties of gases There is a lot of “free” space in a gas. Gases can be infinitely expanded. Gases fill containers uniformly and completely.

Gas laws Studies of the behavior of gases played a major role in the development of the physical sciences in the 7th and 8th centuries.

When you inhale, the volume of your chest cavity increases, and air moves into your lungs. When you exhale, the volume of your chest cavity decreases,

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Chapter 16 Section 3. Pressure What have we learned about gas particles from the kinetic theory? -They are constantly in motion and collide with everything.

CLE Apply the kinetic molecular theory to describe solids, liquids, and gases. CLE Investigate characteristics associated with the gaseous.

Jeopardy Measuring Gases P and T and V V and T and P BoylesCharles Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

GASES THE THIRD STATE OF MATTER We live at the bottom of an ocean of air – the ATMOSPHERE The highest pressures occur at the lowest altitudes. If you.

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Gases KMS 8th Grade Science Ms. Bormann The Nature of Gases The first gas that was investigated was air & it took a long time before it was discovered that it was air.

The Gas Laws. INTRODUCTION TO GASES I can identify the properties of a gas. I can describe and explain the properties of a gas.

PP THE GAS SCIENCES. Boyle’s law This law is named after Charles Boyle, who studied the relationship between pressure, p, and volume, V, in the.

Gas laws. Gas pressure pressure is defined as force per unit area. Gas particles exert pressure when they collide with the walls of their container. The.

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The Gas Laws. What are the gas laws?  The gas laws are specifically about volume, temperature and pressure.  Changes in volume, temperature and pressure.

3-3 Notes Part I. Section 3: The Behavior of Gases What types of measurements are useful when working with gases? How are the volume, temperature, and.

PP THE GAS SCIENCES. Boyle’s Law This law is named after Robert Boyle, who studied the relationship between pressure, p, and volume, V, in the.

Chapter 11 Behavior of gases 11.1 Gas pressure Tells volume, temperature and the number of particles. The pressure of a gas is directly proportional to.

Ideal Gas Laws What Causes Gas Pressure In A Closed Container?

GAS LAWS. CHARLES’S LAW Jacques Charles invented the hydrogen balloon Collected data on the relationship between the temperature and the volume of gases.

Key Concepts What causes gas pressure in a closed container? What factors affect gas pressure? 3. How are the temperature, volume and pressure of a gas related?

In. The result of a force distributed over an area. 1. Press a. The result of a force distributed over an area. b. Collisions between particles of a gas and the walls of the container cause the pressure in a closed container of gas. http://www.bbc.co.uk/staticarchive/1892d615d510908b1151d6a98e5d0966fc3d938d.gif

1. Press c. The SI unit of pressure is derived from the SI units of force and area. 1). Force is measured in newtons (N). 2). The area is measured in square meters (m2). 3). The SI unit for pressure, the pascal (Pa), is equal to newtons per square meter. 4). One kilopascal (kPa) is equal to 1000 pascal.

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In. Temperature b. Volume c. Number of its particles. 2. Factors affecting gas pressure a. Temperature b. Volume c. Number of its particles.

2. Factors affecting gas pressure temperature 1). Increasing the temperature of a gas will increase the pressure if the volume of the gas and the number of particles are constant. https://d2gne97vdumgn3.cloudfront.net/api/file/rNAHpnFQRF7qebsJKbzw

2. Factors affecting gas pressure 2). Example: The fire department uses a pressure gauge to check the air pressure in a tire on a fire engine.

2. Factors affecting Gas Pressure Volume 1). Decreasing the volume of a gas increases the pressure when the temperature of the gas and the number of particles are constant. http://2012books.lardbucket.org/books/principles-of-general-chemistry-v1.0/section_14/a433792ac2caa29995f55547b9d15918.jpg

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2. Factors that affect gas pressure examples: Turn the cap on a plastic bottle and then squeeze it. What is happening? The volume of the plastic bottle begins to decrease. As the volume decreases, the particles of trapped air collide more often with the walls of the bottle. The pressure in the bottle increases.

2. Factors affecting gas pressure 2). Examples: Movement of a muscle called the diaphragm changes the volume of your chest cavity. Inhaling Exhaling diaphragm contracts. The rib cage is lifted up and out. Diaphragm relaxes. Rib cage moves down and in. Lungs Rib Cage Diaphragm

2. Factors affecting gas pressure Number of particles 1). Increasing the number of particles will increase the pressure of a gas if the temperature and volume are constant. 2). The more particles in the same volume, the greater the number of collisions and the greater the pressure.

3. Charles’s Law French physicist Jacques Charles collected data on the relationship between the temperature and the volume of gases. The graph of the data showed a direct relationship between the volume of a gas and the temperature of the gas. https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Jacques_Alexandre_C%C3%A9sar_Charles.jpg/200px-Jacques_Alexandre_C%C3%A9sar_Charles.jpg

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Charles’s Law Charles extended the graph beyond the measured data to find the temperature that would produce a volume of 0 L. The temperature at the point where the line crosses the x-axis was -273.15 °C.

Equal to 0 K on the Kelvin temperature scale. 3. Charles’ law This temperature is equal to 0 K on the Kelvin temperature scale. A temperature of 0 K is called absolute zero. https://s-media-cache-ak0.pinimg.com/736x/7d/06/05/7d0605d00013c75e00522f137779f9d2.jpg

3. Charles’ law d. States that the volume of a gas is directly proportional to its temperature in kelvin when the pressure and the number of particles of the gas are constant. T1 and V1 – Before the temperature change T2 and V2 – After the temperature change

4. Boyle’s Law Robert Boyle described the relationship between the pressure and the volume of a gas. The graph shows an inverse relationship between the volume of a gas and the pressure of the gas.

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4. Boyle’s law c. States that the volume of a gas is inversely proportional to its pressure when the temperature and number of particles are constant. P1 and V1 – Before a change occurs. P2 and V2 – After a change occurs.

5. The Combined Gas Law The relationships described by Boyle’s law and Charles’ law can be described by a single law. The combined gas law describes the relationship between the temperature, volume and pressure of a gas when the number of particles is constant.

5. The combined gas law c. Examples: A cylinder containing air at a pressure of 100 kPa has a volume of 0.75 L. The pressure is increased to 300 kPa. The temperature does not change. Find the new volume of air. Given: Work: Solve for: Answer:

5. The combined gas law A gas has a volume of 5.0 L at a pressure of 50 kPa. What happens to the volume when the pressure is increased to 125 kPa? The temperature does not change. Given: Work: Solve for: Answer:

Answered: An Ideal Gas Is In A Closed Container.…

The Combined Gas Law 2. Gas stored in a tank at 273 K has a pressure of 388 kPa. The safe limit for the pressure is 825 kPa. At what temperature will the gas reach this pressure? Given: Work: Solve for: Answer:

Given the combined gas law: Work: Solve for: Answer: 3. At 10ºC the gas in a cylinder has a volume of 0.250 L. The gas is allowed to expand to 0.285 L. What must the final temperature be for the pressure to remain constant? (Hint: Convert with ºC + 273 = K.) Given: Work: Solve for: Answer:

5. The Combined Gas Law Balloons like these are used by scientists to collect data about the Earth’s atmosphere. The balloon is filled with hydrogen or helium. It carries a package of weather instruments into the atmosphere.

Review Questions What causes the pressure to increase when more gas particles are added to a closed container? an increase in the number of collisions between the gas and the container walls a decrease in the volume of the container a decrease in the size of each particle as the number of particles increases an increase in the number of collisions between air particles and the outside of the container

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Review Questions What causes the pressure to increase when more gas particles are added to a closed container? an increase in the number of collisions between the gas and the container walls a decrease in the volume of the container a decrease in the size of each particle or the number of particles

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