Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Behaviour of gases

1,510 views

Published on

Published in: Education
  • Be the first to comment

Behaviour of gases

  1. 1. BEHAVIOUR OF GASES. CHAPTER – 18.
  2. 2. THREE STATES OF MATTER. 1. SOLID. 2. LIQUID. 3.GAS.
  3. 3. NO DEFINITE SHAPE / VOLUME.
  4. 4. MAIN FEATURES OF GASES. 1.HIGHLY COMPRESSIBLE.
  5. 5. 2. EXERT PRESSURE EQUALLY IN ALL DIRECTIONS.
  6. 6. 3. MIX EVENLY IN ALL PROPORTIONS.
  7. 7. 4. LEAST DENSE THAN OTHER STATES OF MATTER.
  8. 8. MAGIC BALLON.
  9. 9. FOR FIXED MASS OF GAS AT CONSTANT PRESSURE ,THE VOLUME EXPANDS OR CONTRACTS AS THE TEMP.. VARIES. CHARLES GAY LUSSAC
  10. 10. “UNDER CONSTANT PRESSURE DEGREE RISE IN TEMP.., THE VOLUME OF THE GAS INCREASED BY 1/273 OF THE ORIGINAL VOLUME AT 0°C (273K)”
  11. 11. * “KELVIN” IS THE SI UNIT OF TEMPERATURE. * TEMP.. – 273°C IS CALLED ABSOLUTE ZERO.(0K) * AT 0K ALL GASES OCCUPU MINIMUM TEMP..
  12. 12. CHARLES LAW. “ AT CONSTANT PRESSURE, THE VOLUME OF A FIXED MASS OF GAS IS DIRECTLY PROPORTIONAL TO ITS ABSOLUTE TEMP..”
  13. 13. V α T. V = KT. (WHERE “K” IS PROPORTIONALITY CONSTANT.)
  14. 14. EQUATION FOR CHARLES LAW. = K
  15. 15. APPLICATIONS OF CHARLES LAW.
  16. 16. 1. BALLOONS POPS OUT DURING HOT SUMMER THAN IN WINTER.
  17. 17. 2. SODA BOTTLES STORED IN COOL & DRY PLACES.
  18. 18. ROBERT BOYLE. RELATION B/W VOLUME & PRESSURE OF GASES WHEN TEMP.. IS KEPT CONSTANT.
  19. 19. BOYLE’S LAW. “ AT CONSTANT TEMPERATURE, THE VOLUME OF A GIVEN MASS OF DRY GAS IS INVERSELY PROPORTIONAL TO ITS PRESSURE.”
  20. 20. DIFFUSION. • “ RANDOM MOVEMENT OF GASEOUS MOLECULES FROM THE REGION OF HIGHER CONCENTRATION TO THE REGION OF LOWER CONCENTRATION.”
  21. 21. RATE OF DIFFUSION OF A GAS. “ RATE OF DIFFUSION OF A GAS IS EQUAL TO THE VOLUME OF A GAS DIFFUSING PER UNIT TIME”
  22. 22. “ THE RATE OF DIFFUSION OF A GAS IS INVERSELY PROPORTIONAL TO THE SQUARE ROOT OF ITS DENSITY”

×