ef152-lec-5-2 - Gas Laws Pressure Gas Laws 1787 Charless...

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EF 152 Spring, 2009 Lecture 5-2 2 Gas Laws: For a given constant temperature V p 1 constant = pV 1662 – Boyle’s Law Volume Pressure p – absolute pressure Given: Air piston has a volume of 0.3 ft 3 and a gage pressure of 0. The piston slowly compresses the air (temperature = constant) to a volume of 0.15 ft 3 . Determine the new gage pressure (p atm = 14.7 psi). A. 29.4 psi B. 14.7 psi C. 7.4 psi EF 152 Spring, 2009 Lecture 5-2 3 Gas Laws: 1787 – Charles’s Law T V For a given constant pressure constant = T V Temperature Volume Given: Air piston has a volume of 0.5 m 3 and a temperature of 20°C. The temperature is increased to 40°C under constant pressure. Determine the new volume. A. 0.25 m 3 B. 0.468 m 3 C. 0.534 m 3 D. 1.0 m 3 EF 152 Spring, 2009 Lecture 5-2 4 Gas Laws: Temperature 1802 – Gay-Lussac’s Law For a given constant volume T p constant = T p Given: Tires are filled to a gauge pressure of 200 kPa (29 psi) at 10°C. After a drive of 100 km, the temperature in the
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ef152-lec-5-2 - Gas Laws Pressure Gas Laws 1787 Charless...

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