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Why do you use liquid paraffin to detect melting point and boiling point in a lab?
Wiki User
∙ 9y ago
Because the phase changes (solid and liquid, and even vaporization) are within safe temperature limits and the heat of fusion (enthalpy) is low compared to water -- i.e. it becomes solid again faster than freezing water. Unless you have some dry ice handy.
Wiki User
∙ 9y ago
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What is the boiling point of liquid paraffin?
Paraffin is a class of hydrocarbons called Alkane the most basic alkane being methane. Methane has a boiling point of -161 degree Celsius. As it goes higher the bp increases as the energy required to break the hydrogen bonding increases.
Why we use paraffin for determination of melting point?
Liquid paraffin is used in thermostatic baths, to maintain a constant temperature.
What is the Paraffin Wax freezing Point?
The freezing point is the same as the melting point; it is the point at which the paraffin transitions from solid to liquid. 37 °C (99 °F)
In the experiment of determining melting point why each time fresh paraffin liquid should be taken?
Paraffin oil is nontoxic, noncorrosive and stable.
Is boiling point is always same as the melting point?
NO!!! Boiling point is the temperature when a liquid changes to a gas. Melting point is the temperature when a solid changes to a liquid. Remember For rising temperatures It melts then boils For falling temperatures It condenses then freezes. Melting/Freezing point is the same temperature for change of state solid/liquid Boiling/Condensing point is the same temperature for change of state liquid/gas
How do differ boiling and melting?
Boiling - is turning a liquid into a gas. Melting is turning a solid into a liquid.
What is the boiling point of liquid paraffin?
Paraffin is a class of hydrocarbons called Alkane the most basic alkane being methane. Methane has a boiling point of -161 degree Celsius. As it goes higher the bp increases as the energy required to break the hydrogen bonding increases.
Why we use paraffin for determination of melting point?
Liquid paraffin is used in thermostatic baths, to maintain a constant temperature.
Short difference between melting and boiling point?
Boiling point is the temperature at which a liquid is in equilibrium with the gas phase of the same liquid. Melting point is the temperature at which a solid becomes a liquid (i.e. the point at which a solid and liquid of the same substance will be in equilibrium)
What is the Paraffin Wax freezing Point?
The freezing point is the same as the melting point; it is the point at which the paraffin transitions from solid to liquid. 37 °C (99 °F)
Are boiling and melting the same?
No boiling is heating and energy is added and melting the solid turns into a liquid.
What is melting points and the boiling points?
Melting point: the temperature at which a solid become a liquid. Boiling point: the temperature at which a liquid become a gas.
What is true of a melting point and a boiling point?
Melting point is a temperature in which solid change into liquid form and boiling point in which liquid convert into gas form
In the experiment of determining melting point why each time fresh paraffin liquid should be taken?
Paraffin oil is nontoxic, noncorrosive and stable.
Is the boiling point of every liquid different?
yes!!!! every liquid is different for then it has a difference in the boiling and melting point.
How are boiling point and melting point different?
Boiling point is the temperature point at which a liquid becomes a gas while melting point is the point at which a solid becomes a liquid.
Is the temperature at which a solid changes to a liquid the solid's boiling point?
No, it is the melting point. Ice changes to water when it melts, not when it boils.
