Questions:
1. Explain the phenomeno of melting.
2. Does melting point change from altitude to altitude?
3. Why each time fresh paraffin liquid should be taken?
4. Why is the paraffin liquid stirred constantly?
Answers
Answer:
1)Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid. This occurs when the internal energy of the solid increases, typically by the application of heat or pressure, which increases the substance's temperature to the melting point.
2)The melting/freezing and boiling points change with pressure. ... At lower pressure or higher altitudes, the boiling point is lower. At sea level, pure water boils at 212 °F (100°C). At the lower atmospheric pressure on the top of Mount Everest, pure water boils at about 154 °F (68°C).
3)Paraffin wax is a white or colorless soft, solid wax. It's made from saturated hydrocarbons. It's often used in skin-softening salon and spa treatments on the hands,The surface tension of the bath liquid is sufficient to hold the capillary tube in position. Heat the beaker slowly while constantly stirring the contents using a stirrer to maintain a uniform temperature throughout. cuticles, and feet because it's colorless, tasteless, and odorless. It can also be used to provide pain relief to sore joints and muscles.
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