Air Bubble Lab - Enthalpy of Vaporization of Water 1....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Enthalpy of Vaporization of Water 1. Purpose- To determine experimentally the enthalpy of vaporization of water by measuring the volume of a bubble containing air and water vapor at various temperatures. 2. Data Pressure of Room 758.9 mm Hg 3. Graphs and Table of Results Temperature of Water vs Volume of Air Bubble 3 4 5 6 7 8 9 10 11 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Temperature (C) Volume of Air Bubble (mL) Number of Moles of Air Present in Cylinder (mol) Temperature of Air Bubble ( C ) Volume of Air Bubble (mL) 79.9 9.8 77.9 9.3 76.0 8.8 73.9 8.3 71.7 7.8 69.9 7.5 68.0 7.2 66.0 6.9 64.0 6.6 62.0 6.4 60.0 6.2 58.0 6.1 55.6 6.0 53.9 5.8 52.0 5.7 50.0 5.6 3.8 4.2 Enthalpy of Vaporization of Water Pressure of the Air in the Air Bubble Based Upon Temperature Temperature of Air Bubble ( C ) Pressure of Air (atm) 79.9 0.53 77.9 0.56 76 0.59 73.9 0.62 71.7 0.65 69.9 0.68 68 0.7 66 0.73 64 0.75 62 0.77 60 0.79 58 0.8 55.6 0.81 53.9 0.83 52 0.84 50 0.85 3.8 1 Data for Natural Log of the Pressure of Water 1/Temperature of Air Bubble (1/K) lnPwater (ln atm) 0.00283-0.76 0.00285-0.82 0.00286-0.88 0.00288-0.96 0.00290-1.1 0.00291-1.1 0.00293-1.2 0.00295-1.3 0.00297-1.4 0.00298-1.5 0.00300-1.6 0.00302-1.6 0.00304-1.7 0.00306-1.8 0.00308-1.8 0.00309-1.9 1.8x10-4 Enthalpy of Vaporization of Water...
View Full Document

This note was uploaded on 04/09/2008 for the course CHEMISTRY 030.105 taught by Professor Pasternick during the Fall '06 term at Johns Hopkins.

Page1 / 5

Air Bubble Lab - Enthalpy of Vaporization of Water 1....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online