May 29, 2024 16:21:31

Hi everyone, my name is Nicole Mangguti Anastasia Merianto I'm from class 11A2, number 130 Here I will explain one topic, which is reaction speed Do you know what is reaction speed? If you're curious, let's watch this video together What is reaction speed? Reaction speed is the change of concentration every change of time The change can increase or decrease The concept of chemical reaction speed is summarized as follows What is reaction speed? Next is the factor of reaction speed Reaction speed is influenced by four factors The first factor is the area of the touch surface The area of the touch surface accelerates the speed of reaction Because the larger the area of the touch surface, the larger the chance of effective collision The larger the area of the touch surface, the smaller the particle size So the smaller the particle size, the faster the reaction The second factor is concentration The speed of reaction will be faster as the concentration increases So the more particles grow, the faster the speed of reaction The third factor is temperature The increase in temperature can accelerate the speed of reaction Because the increase in temperature causes the particle to move faster And the last factor is catalyst The catalyst can influence the speed of reaction without any chemical change It will form again at the end of the reaction Example of reaction speed In everyday life, we often find chemical reactions that occur quickly But there are also reactions that occur very slowly Such as fermentation of ice in drinks, fermentation in bread making, sugar fermentation, metal corrosion, and the last one is the formation of rust on the knife The last one is the conclusion The larger the factor that influences the speed of reaction, the faster or larger the speed of reaction And vice versa The smaller the factor that influences the speed of reaction, the slower or smaller the speed of reaction That's all I can explain in this video Sorry if there are any mistakes I will end this video here Thank you for watching