4. An instrument used to measure a specific gas pressure is a a) manometer b) barometer c) calorimeter d) thermometer 5. Which of the following represents the largest pressure? a) 1lb/in^2 b) 1Pa c) 1 atmosphere d) 1 mm Hg 6. As the altitude increases the atmospheric pressure a) stays the same c) increases b) changes randomly d) decreases 7. Which of the following statements about real gases is correct? a) Real gases deviate from Boyle's Law at low pressures. b) Real gases deviate from Boyle's Law at high pressures. c) Real gases experience significant attractive forces between the particles. d) Real gases deviate from Charles' Law at high temperatures.

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4. An instrument used to measure a specific gas pressure is a a) manometer b) barometer c) calorimeter d) thermometer 5. Which of the following represents the largest pressure? a) 1lb/in^2 b) 1Pa c) 1 atmosphere d) 1 mm Hg 6. As the altitude increases the atmospheric pressure a) stays the same c) increases b) changes randomly d) decreases 7. Which of the following statements about real gases is correct? a) Real gases deviate from Boyle's Law at low pressures. b) Real gases deviate from Boyle's Law at high pressures. c) Real gases experience significant attractive forces between the particles. d) Real gases deviate from Charles' Law at high temperatures.

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4. An instrument used to measure a specific gas pressure is a **a) manometer** A manometer is specifically designed to measure the pressure of gases.5. Which of the following represents the largest pressure? **c) 1 atmosphere** 1 atmosphere is equivalent to approximately 101,325 Pa, which is significantly larger than 1 lb/in² (approximately 6,894.76 Pa), 1 Pa, and 1 mm Hg (approximately 133.322 Pa).6. As the altitude increases, the atmospheric pressure **d) decreases** Atmospheric pressure decreases with an increase in altitude because there is less air above the surface exerting pressure.7. Which of the following statements about real gases is correct? **b) Real gases deviate from Boyle's Law at high pressures.** Real gases deviate from ideal behavior, such as Boyle's Law, at high pressures due to the volume occupied by gas molecules and intermolecular forces becoming significant.

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