VRAAG 6 0,5mol H2(g) en 0,6mol Br2(g) word in ’n 5,0dm3…

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VRAAG 6 0,5mоl H2(g) en 0,6mоl Br2(g) wоrd in ’n 5,0dm3 fles sааmgevoeg en verhit tot 700 K. Die reаksie is eksotermies: H2(g) + Br2(g) → 2HBr(g) 6.1 Die konsentrasie HBr in die fles by ewewig is 0,17 mol.dm-3. Bereken Kc. (8) 6.2 Wanneer die temperatuur vermeerder word, sal die Kc-waarde VERMEERDER, VERMINDER of DIESELFDE BLY? Gebruik Le Chatelier se beginsel om jou antwoord te verduidelik. (4) 6.3 Beskou die volgende grafiek en beantwoord die vrae wat volg:   Regterklik op die onderstaande blou blokkie om die diagram vir Vraag 6 in 'n nuwe venster oop te maak.       6.3.1 Skryf ’n gebalanseerde vergelyking wat die eksotermiese reaksie wat plaasvind, verteenwoordig. (3) 6.3.2 Gee die tyd (tye) wanneer die stelsel ewewig bereik. (2) 6.3.3 Noem die versteuring wat by 14 s plaasgevind het. (2) 6.3.4 Hoe sal die waarde van die ewewigskonstante na hierdie versteuring verander? Skryf slegs VERMEERDER, VERMINDER of BLY DIESELFDE. Gee ’n rede vir jou antwoord. (3) 6.3.5 Noem die toestande nodig vir die reaksie om ewewig te bereik. (2) 6.3.6 Noem een ander toestand wat die ewewig in hierdie reaksie sal beinvloed en verduidelik wat die effek op die Kc-waarde sal wees indien hierdie toestand verhoog. (3)     [27]

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