tag:blogger.com,1999:blog-5690887427829940237.post7593519371740127344..comments2024-01-16T00:26:39.356-08:00Comments on IGCSE Chemistry: 4.18 describe the effects of changes in surface area of a solid, concentration of solutions, pressure of gases, temperature and the use of a catalyst on the rate of a reactionHannahHelphttp://www.blogger.com/profile/03691395988069139300noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5690887427829940237.post-8611647049241467812018-01-01T05:29:42.385-08:002018-01-01T05:29:42.385-08:00Increase in concentration =
+Increase in rate of ...Increase in concentration = <br />+Increase in rate of reaction<br />+more particles in a given volume <br />+Particles collide more often<br />+therefore more successful collisions per second.<br /><br />Increase in temperature= <br />+Increase in rate of reaction <br />+Particles have more energy<br />+therefore more collisions have the required activation energy<br />+which results in more successful collisions per second<br /><br />Increase in surface area=<br />+Increase in rate of reaction<br />+More particles in contact with the other reactant<br />+Particles collide more often<br />+which results in more successful collisions per second<br /><br />A CATALYST provides an alternative pathway for the reaction to start, which requires a low activation energy.<br />(Activation energy is the amount of energy required for a reaction to occur)<br /><br />Happy revising people!!ewittehttps://www.blogger.com/profile/06978049584197146061noreply@blogger.comtag:blogger.com,1999:blog-5690887427829940237.post-44938780886420656232018-01-01T05:27:10.494-08:002018-01-01T05:27:10.494-08:00This comment has been removed by the author.ewittehttps://www.blogger.com/profile/06978049584197146061noreply@blogger.comtag:blogger.com,1999:blog-5690887427829940237.post-10096529469087307122017-06-01T12:16:37.216-07:002017-06-01T12:16:37.216-07:00could you say something about the particle collisi...could you say something about the particle collision theory on this please?Anonymoushttps://www.blogger.com/profile/05607784787331024193noreply@blogger.comtag:blogger.com,1999:blog-5690887427829940237.post-50007047997033756862015-05-30T02:46:32.376-07:002015-05-30T02:46:32.376-07:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/01621129044100416869noreply@blogger.com