CH110 Lecture Notes - Lecture 7: Pressure Measurement, Barometer

• School: WLU
• Department: Chemistry
• Course: CH110
• Professor: Naveen Joshi

Document Summary

Manometer: similar to barometer, but gas pressure is exerted on both liquid surfaces, and the diference in pressures is measured. For a ixed amount of gas at a constant temperature, the gas volume is inversely proporional to the gas pressure. 0 k= -273. 15 c (ie. the temperature at which molecular moion ceases) Kelvin and celsius temperatures are related by t (k) = t ( c) + 273. 15. The volume of a ixed amount of gas at constant pressure is directly proporional to the kelvin (absolute) temperature. Equal volumes of diferent gases compared at the same temperature and pressure contain equal numbers of molecules. Equal numbers of molecules of diferent gases compared at the same temperature and pressure occupy equal volumes. The number of moles is directly proporional to which the gas will occupy. At a ixed temperature and pressure, the volume of a gas is directly proporional to the amount of gas.