Mixing is when you take different things and put them together to make something new. You do this by stirring or shaking them up. Imagine you have a glass of water and you want to add some juice to it. You have to stir it up really well so that the juice mixes with the water and you get a yummy drink!
In process engineering, mixing is when you take different ingredients or substances and put them together in a big tank or vessel. This is done to make products like medicines, chemicals, and food products like sauces and soups. Sometimes, these products would not work if you did not mix the ingredients together in just the right way.
Think of it like baking a cake. If you don't mix your flour, sugar, and butter together well enough, you might end up with a lumpy cake! But if you mix everything just right, you will have a delicious, smooth cake that everyone will love. In process engineering, mixing is really important because you want to make sure that all the ingredients are evenly distributed throughout the product. If one part of the product is different from another, it might not work properly, or it might not taste good.
So, mixing is just like making a big recipe! You take different things, stir them up or shake them up, and then you have something new and wonderful!