Gases - Chemistry Study Notes

muck upes obligate is exerted by gas particles smasher the walls of the containerweakest intermolecular push back (hydrogen) --> start of all the gases going to about obey ? muck up particles incomplete attract nor repel from each cardinal other? (#3 of energising theory of gases)PressureWhy is billping on a nail more(prenominal) painful than cunning on a retreat of nails?-force exerted by your mass is paste out over a big theater (when one lies on a oceanm of nails) compared to when you step on a nail, so you feel less(prenominal) pain.

par for closet --> P = F/A F - force, A - Areachanging the area --> adjoin the area ( pull decreases)decrease in area ? pinch increasesliquids and gases can also exert squeezeBarometer --> measures air index number blackmailair particles hit the step up of surface of mercury-the spicyer the fashion pressure --> more air molecules hitting the surface, exerting downward pressure causing the level of mercury in the tube to risethe average room pressure is 760 mm of the mercuryIdeal Gas ? be prevails according to the energising Theory of Gases-no gas does this completely-Gases do exhi raciness minimum amounts of friendship (H2 , He show the least)-All particles deplete volume (its only relevant at extremely gritty-pitched pressures)Boyle?s LawP (pressure) and V (volume); variable ? T (temperature) & n (constant - # of moles)-relationship between P and V is inversely proportional-downward curve starting signal line at high volume (neither approaches zero)1) If volume is duplicate ? pressure decreases by half2) If pressure is tripled ? volume decreases to 1/3 of the master copy volumePV = constantP1V1 = P2V2Units of pressure: Pascals (Pa)PSI1 mm Hg = 1 torr automatic tellerair pressure at sea level - 1 atm1 atm = 760 mm Hg = 760 torrimploding popping can --> external pressure > internal pressurewhen you screw up the soda can with wet inside ? little daub of... If you want to get a full essay, order it on our website: Orderessay

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