Reactivity 2 : The Rate of Reaction by Utari Nurul Fathiyah https://padlet.com/utari_n/3ka6hxjvdb76xm15 Discuss these questions with your pairs and post your answer here. Please put your name on the post title. en-us 2024-10-08 02:43:46 UTC 2024-10-08 07:09:03 UTC hello@padlet.com mola https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158594276 Rate of reaction can be measured by recording the amount of product gained over a span of time

]]> 2024-10-08 06:47:04 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158594276 nadoe https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158594877 Rate = product/ time

The amount of product will be gained from the experiment

]]> 2024-10-08 06:47:25 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158594877 marsicca https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158595500 the amount of product produced over time or the concentration of reaction that is used over time

]]> 2024-10-08 06:47:49 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158595500 nadoe https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158595676 Changing/maintaining the factors in the rate of reaction: temperature, concentration, etc

]]> 2024-10-08 06:47:56 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158595676 mola https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596347 By the manipulation of variables such as the concentration, temperature, and catalyst

]]> 2024-10-08 06:48:20 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596347 Sage Marvel Radya https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596397 It can be measured from the change of concentration of reactant or product over time.

Using various tools such as a gas syringe and measuring how much the volume changed.

]]> 2024-10-08 06:48:22 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596397 karina and shakila https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596542 temperature; as the temperature increases, the kinetic energy increases and it increases the chances of collisions between particles which increases the rate of reaction


concentration; as the concentration increases the chances of successfuk collisions also increases. But this would not increase as much as if the temperature is increased, as there isn’t any extra energy supplied.

]]> 2024-10-08 06:48:28 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158596542 amanda, mariam https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158597158 Controlling the variables that are related to the experiment (eg. temperature, concentration, catalyst)

]]> 2024-10-08 06:48:46 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158597158 marsic https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158598207

  • temperature: water bath, thermometer

  • concentration of reactants: maintain

  • pressure

  • catalyst: maintain concentration

    • ]]>     2024-10-08 06:49:18 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158598207     nadoe https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158598505 If the concentration and temperature is increased, the molecules will collide more, making the reaction faster.

    ]]>     2024-10-08 06:49:31 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158598505     mola https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599270 Temperature is directly proportional to the kinetic energy, thus increasing the movement of the molecules. This leads to more collisions between molecules


    ]]>     2024-10-08 06:49:53 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599270     marsicca https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599612 when the rate of reaction is increased there is more collision between particles. when the factors are tested they will be able to affect the speed of the particles and the rate of collision.

    ]]>     2024-10-08 06:50:04 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599612     nadoe https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599622

  • Lower bond breaking

  • Catalyst

  • Energy needed for bond forming

    • ]]>     2024-10-08 06:50:04 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599622     Sage Marvel Radya https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599810 By maintaining the variables constant through the means of fair experiments such as using a gas syringe, water bath, etc.

    ]]>     2024-10-08 06:50:12 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158599810     marsic https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158601031

  • bond enthalpy, energy required to break bond and form bond

  • activation energy

  • surface area, big = fast

    • ]]>     2024-10-08 06:50:51 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158601031     mola https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158602298 Different uses of catalysts, the bonds within the molecules

    ]]>     2024-10-08 06:51:34 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158602298     Sage Radya Marvel https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158607221 The rate of reaction depends on how often the molecules collide with each other successfully.Factors such as; increase temperature, surface area, molecule size would also increase collision hence making the rate of reaction faster.

    ]]>     2024-10-08 06:54:16 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158607221     amanda, mariam https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158607466 There may be a stronger catalyst than the other reactions

    ]]>     2024-10-08 06:54:24 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158607466     karina and shakila https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158608618 The use of different catalysts

    ]]>     2024-10-08 06:55:00 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158608618     shakila karina https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158609974 rate of reaction can be measured using product/time. Another way is to measure the reactant used up in a certain period of time.

    ]]>     2024-10-08 06:55:49 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158609974     amanda, mariam https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158610803 Increased temperature = increased kinetic energy = increased collisions


    Increased concentration = increased particles = increased collisions


    Increased pressure = increased collisions due to less space or more particles available


    Decreased size of particle = increased surface area = more area of contact = increased collisions

    ]]>     2024-10-08 06:56:15 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158610803     amanda, mariam https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158612039 Change of concentration in the reactant or products over time

    ]]>     2024-10-08 06:56:59 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158612039     Sage Radya Marvel https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158612108 There is a difference in reactivity of the reactant for example:

    Potassium + water reacts more faster compared to lithium + water

    also catalyst

    ]]>     2024-10-08 06:57:02 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158612108     Karina shakila https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158613391 by keeping the variables controlled. Temperature can be kept constant through the use of water bath. Ensuring the same concentration of reactants and so forth

    ]]>     2024-10-08 06:57:39 UTC https://padlet.com/utari_n/3ka6hxjvdb76xm15/wish/3158613391