Interference with gas exchange Asthma is a common chronic inflammatory disease of the airways characterized by variable and recurring symptoms‚ reversible airflow obstruction‚ and bronchospasm. Common symptoms include wheezing‚ coughing‚ chest tightness‚ and shortness of breath. Asthma is thought to be caused by a combination of genetic and environmental factors. Its diagnosis is usually based on the pattern of symptoms‚ response to therapy over time. In severe cases hospitalization can be required
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“THE GAS MAN COMETH” The documentary‚ “Gas Land”‚ by Josh Fox‚ is a film about the problems with contaminated groundwater due to excessive and unregulated natural gas extraction across the country. In the film‚ Fox travels all over to talk to many people who have rented out their land to natural gas companies‚ only to get contaminated water and no help from any company or organization with the problems that ensue. Fox uses many techniques in his film to get across his point that America should
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Gas Law Problems Boyles Law 1. A gas occupies 12.3 litres at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg? 2. If a gas at 25.0 °C occupies 3.60 litres at a pressure of 1.00 atm‚ what will be its volume at a pressure of 2.50 atm? 3. To what pressure must a gas be compressed in order to get into a 3.00 cubic foot tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure? 4. A gas occupies 1.56 L at 1.00 atm. What will be the volume
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RIPHAH INTERNATIONAL UNIVERSITY | RESEARCH | GAS CRISES AND ITS SOLUTION | | BY: MOEZZA MIR | 12/19/2011 | | GAS CRISES AND ITS SOLUTION Pakistan is one of those countries who is caught in different serious energy crisis and gas is one of the big crisis for Pakistan .This topic includes identification of gas crisis and its solution. We can divide gas crisis into four factors 1. Home Users 2. CNG Station 3. Industries 4. Miss Management HOME USERS Home
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Ch 10 Gas Laws Sample Questions 1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression‚ the gas pressure was __________ atm. A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0 2) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The balloon must be cooled to __________°C to reduce its volume to 3.78 L (at constant pressure). A) 38 B) 0 C) 72.9 D) 273 E) 546 3) If 50
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greenhouse gas effect The greenhouse gas effect is the accumulation of natural and man-made gas in the atmosphere which does not block sunlight but trap heat to keep the temperature on Earth suitable for life. Imagine a greenhouse that is made of glass that supports plants growth. Visible sunlight can go through the glass but the heat in which it contains can’t go back through the glass‚ thus a greenhouse keeps plants warm allowing them to live and grow happily. The same process with gas replacing
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Gas leak detection is the process of identifying potentially hazardous gas leaks by means of various sensors. These sensors usually employ an audible alarm to alert people when a dangerous gas has been detected. Common sensors used today include Infrared Point Sensor‚ Ultrasonic gas detectors‚ electrochemical gas detectors‚ and Semiconductor Sensors. More recently‚ infrared imaging sensors have come into use. All of these sensors are used for a wide range of applications‚ and can be found in industrial
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fuel is a natural fuel‚ such as coal or gas‚ formed in the geological past from the remains of living organisms. Humans use fossil fuels every minute of each day in order to survive. Coal‚ oil‚ petrol gas‚ diesel fuel‚ and natural gas are all used from fossil fuels. That being said‚ we use it with some things such as‚ central heating and air conditioning‚ driving a car‚ shopping for groceries that were delivered by a truck or train‚ and/or using an outdoor gas grill for cooking. Without fossil fuel
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you have an idea about what you want but not quite sure if you want a gasoline or a diesel engine. Well‚ gas and diesel engines are very similar yet different in quite a few ways. At first glance‚ someone who doesn’t know much about either of the two engines might ask‚ “What’s the difference?” To the untrained eye they might look exactly alike‚ but don’t judge the engine by its exterior look. Gas engines are mainly used by the individual in personal vehicles whereas diesels are very popular in the
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1) Explain why alveolar gas has a different composition from air. Atmospheric (external) air contains a high percentage of oxygen and nitrogen whereas alveoli gas contains a lower percentage of oxygen and a higher percentage of carbon dioxide. The differences in composition are due to the fact that gaseous exchange is taking place within the alveoli in the lungs. Oxygen is diffusing from the alveoli into the pulmonary artery and carbon dioxide is diffusing back into the alveoli from the pulmonary
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