Question

1-why is oil used instead of water to determine the melting point?‌
2-what kind of oil is used at the melting point?what is the reason you are using that oil?
3-why is the temperature different from the meltung point?​

Answer 1

Answer:

1:- Knowing the melting point of a chemical is very important for its storage & transport. In addition to that, melting point is often used to predict the partition behavior of a chemical between solid and gas phases. A higher melting point indicates greater intermolecular forces and therefore less vapour pressure.

2:- 2Paraffin oil is used for determination of boiling point and melting point for the following reasons: It has a very high boiling point and so it can be used to maintain high temperatures in theAs heat is applied to a solid, its temperature will increase until the melting point is reached. More heat then will convert the solid into a liquid with no temperature change. When all the solid has melted, additional heat will raise the temperature of the liquid. boiling and melting point apparatus without loss of the substance.