To answer this question, we need to compare the density of PVC with the density of methanol. The density of PVC can vary depending on its formulation and manufacturing process, but it generally ranges from 1.1 to 1.48 g/mL. The density of methanol is given as 0.791 g/mL. Therefore, PVC is denser than methanol.
This means that PVC will sink in methanol, because it has more mass per unit volume than methanol. A substance will sink in a liquid if its density is greater than the liquid’s density, and it will float if its density is less than the liquid’s density. This is because of the buoyant force that acts on a submerged object, which is equal to the weight of the displaced liquid. If the weight of the object is greater than the weight of the displaced liquid, the object will sink. If the weight of the object is less than the weight of the displaced liquid, the object will float.
Therefore, the answer is: The PVC will sink in methanol because it has a higher density than methanol.