Rutger's University
M.Ed., Columbia Teachers College
Kendal founded an academic coaching company in Washington D.C. and teaches in local area schools. In her spare time she loves to explore new places.
Suspensionsare mixtures of particles that settle out if let undisturbed. Suspensions can be filtered, while solutions cannot.Colloidsare a type of mixture whose particles are held together through Brownian Motion, the erratic movement of colloid particles. Colloids cause the Tyndall Effect, or scattered light due to Brownian motion. The size of the particles found in colloids is smaller than those found in suspensions and greater than those found in solutions. One commonly known colloid is milk.
好吧，因此，您将看到一种混合物的混合物类型也称为溶液，它是相同的，而下一个混合物是异质的混合物，并且存在不同类型的异质混合物，其中粒子真的很大，就像固体或沙子混合物或类似的东西。但是，那些这样的胶体和悬浮液很小。让我们谈谈这些，悬浮液是包含颗粒的混合物，如果不剩下的含义含义像粒子一样大，它们的粒子确实很大，它们比负6中的10个大于10，实际上似乎很小，但与喜欢相比相比原子或与其他颗粒通常在第十米至负第九米的溶液中进行比较，实际上它们很大。由于有大粒子广告，它们没有任何东西可以扣留它们，它们实际上可以分开，因此您会看到的悬架类型甚至胶体或解决方案。
血液如果您留下血液，则不受干扰地将其分开，实际上您可以将其滤除以分离气溶胶，玉米在水中开始时，这些东西是您的悬架类型。另一种类型的异质混合物是胶体，胶体是包含通过布朗运动和布朗运动在一起的中间尺寸颗粒的混合物，我们也将在第二秒获得的是将悬浮液与胶体区分开的。因此，胶体的不同类型和示例将是牛奶，颗粒有点大，但不那么大的油漆和雾气，它们实际上保持在一起，它们不会过滤掉。因此，让我们去谈谈什么是布朗运动，所以布朗运动是胶体颗粒的不稳定运动。因此，假设以这张照片为例，我们有2个较大的胶体颗粒，就像它们可能是蛋白质一样，它们可能是任何东西，它们通常彼此排斥，它们具有排斥，但它们可能会像其他方式一样吸引在溶液中，而不是溶液中，胶体将被吸引到它。因此，它们像这些粒子的恒定不稳定运动一样。因此，如果我们要查看2个悬架与胶体，我们该怎么能注意到一个人没有布朗运动。
Well there's this thing called the "Tyndall effect" and the tyndall effect is that if you shine light through a colloid you're going to get a scattering of that light. So for example fog we know is a colloid, the reason you don't put your high beams on when you're driving through fog is because the Brownian motion of colloidal particles within the fog will shine that light right back in your eyes and actually like affect your driving negatively rather than positively. You'll actually see less of the road than if you put your regular low beam on or fog lights which are located lower which will then like light up the bottom of your driving. So that's the reason why, good example of real life example of fog and the tyndall effect.
但让我们来看看它在这里lab, let's talk about, so one of these guys is a colloid and one of these guys is a suspension. So if I shine my light through it, my light source which is this red laser beam, one of them should actually not be able to go through, the light should not be able to go through and the other one should. So let's actually test it out, so we have here if we put this through this side actually can't see the light source on the other side this is the colloid.
The colloid will stop the light it'll scatter the light and not allow it to go straight through. And this one you kind of probably already noticed that is a suspension is already starting to settle out but let's just test it out using the tyndall effect. Putting light through you can actually see, notice the light actually does go completely all the way through and it's got this like quite a little bit but it definitely like allows the light to go straight through whereas the colloid doesn't at all. So this tyndall effect through the Brownian motion and colloids and suspensions.
