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KINETICS

QuestionAnswer
KINETICS ISTHE STUDY OF.. SPEED OF REACTION USEFUL IN CHEM ENGINEEEING.
WHEN SILVERNITRATE MIXED WITH NACL... REACTION VERY FAST ..
RATE OF CHEMICAL REACTION ? CHANGE INN CONC / TIMEBTAKE OR CHANGE IN REACTANT / CHANGE IN PRODUCT/ TIME.
IF CHANGE IN REACTANT .. CHANGE IN CONCNETRATION OF REACTANT IN MOLDM-3 SO IN RECATION REACTION FALL UNTIL REACTANT USED UP. SLOPE MEASURE RATE OF REACTION
SLOPE DECREASES AS ... REACTANT DECREASES REACTANT USED UP.
GRADIENT OF SLOPE 0 WHEN... REACTION DONE
RATE OF REACTION ALSO ... AMOUNT OF PRODUCT PRODUCED / TIME
COLLISION THEORY STATES... COLLIDING MOLECULESNUST HIT WITH ENOUGH SUFFICIENT ENRGY TO REACT.
GRAPH OF PRODUCT / TIME ? LOOKS LIKE HOOKES LAW CURVE THEN PLATEAUS.
PARTICALES IONS IONS SOLUTION ,MOLECULES OF GAS.. MOVE MPRE RANDOMLY AT DIFF SPEEDS3
MAXWELL AND BOPTMAN CALCULATED ... THE DISTRIBUTION OF SPEEDS OF.MOLECULES IN GAS AND KINETIC ENERGIES.
IF HIGHER TEMP ... AVERAGE KINETIC ENRGY IS GREATER
GRAPH OF FRACTION OF MOLECULES WITH ENERGY AGAINST KIN ENERGY OF 2 DIFF TEMPS... NUMBER OF MOLECUELS / AREA IS SAME FOR BOTH. HIGHER TEMP STEEPER GRADIENT
COLLISION THEORY SECOND REQUIREMENT IS ... COLLIDIBG MOLECULES MUST HAVE ACTIVATION ENERGY BETWEEN THEM
ACTIVATION ENRGY? THE MINIMUM AMOUNT OF ENERGY REQUIRED FOR A CHEMICAL REACTION BE SCCCESSFUL. REACTANTS TO PRODUCTS.
FOR A REACTION AT ROOM TEMP ONLY 1 IN 10^12 ... MOLECULES POSSES THE ACTIVATION ENERGY.
AREA UNDER ACTIVATION ENRGY LINE ... SHOWS AMOUNT OF MOLECULES THAT HAVE ACTIVATION ENERGY.
IF ACTIVATION ENRGY HIGH... NO OF PARTICLES WITH ACTIVATION ENRGY LOW.. SO NO REACTION SYSTEM IS KINETICALLY STABLE . REACTION WILL HAPPEN IN TEMP INCREASED.
FPR SYSTEM TO BE KINETICALLY UNSTABLE.... PARTICLES NEED TO GAIN KINETIC ENERGY EQUAL OR GREATER THAN ACTIVATION.ENRGY . E.G. HYDRPGEN AND OXYGEN REACTION THERMOCHEMICALLY UNSTABLE RELATIVE TO PRODUCT WATER. AC ENRGY SO HIGH THAT REACTION.NOT OCCUR AT
3RD REQUIREMNT OF COLLISION THEORY... PARTICALESMUSTHAVE CORRECT ORRIENTATION ON COLLISION E.G. REACTION BETWEEN CH3I AND OH- OH- ION MUST APPROACH FROM OPP SIDE IF OH ION APPROCHES ON SMAE SIDE OF IODINE ... NO REACTION TAKES PLACE.
COLKISION.ONLY SUCCESSFUP IF.... COLLIDING MOL POSSESS KINETIC ENRGY EQUAL TO AOR GREATER THAN ACTIVATIOJLN ENERGY.
LOW AC ENERGY ... MEANS FAST REACTION
SUMMARY OF.COLLISON THEORY .. MOLECULES MUST COLLIDE WITH CORRECT ORIENTATION. REACTION WITH COMPLEX MOLEFULES FEWER WILL HAVE CORRECT ORIENTION THAN SIMPLIER MOLE.
VERY HIGH ACTIVATION ENRGY MEANS ... KINETICALLY STABLE
HOR HOMOGENOUS REACTION OF GASES AND INCREASE IN PRESSURE AT CPNSTANT TEMP... INCREASES REACTION RATE.
Created by: ufuoma
 

 



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