Chemie - Energieverandering en Tempo en omvangg van reaksie Flashcards

1
Q

Reaksiewarmte (Entalpie) - ΔH

A

Die energie geabsorbeer of vrygestel in ‘n chemiese reaksie.

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2
Q

Eksotermiese reaksie

A

Reaksie wat energie vrystel

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3
Q

Endotermiese reaksie

A

Reaksie wat energie absorbeer

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4
Q

Aktiveringsenergie

A

Die minimum energie benodig vir ‘n reaksie om plaas te vind.

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5
Q

Geaktiveerde kompleks

A

Onstabiele oorgangstoestand van reaktante na produkte.

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6
Q

Reaksietempo

A

Die verandering in konsentrasie van reaktante of produkte per eenheid tyd.

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7
Q

Positiewe katalisator

A

‘n Stof wat die tempo van ‘n chemiese reaksie verhoog sonder om self ‘n permanente verandering te ondergaan

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