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Why is it necessary to use a powder rather than a crystalline sample when determining melting point?
with a crystalline solids ,transfer of heat will not be uniform which can cause an error in the determination of the melting point of a substance .
Why does a glass of ice cubes in water melt faster than a glass of ice cubes in a glass of soda?
Ice cubes that are in water are in full contact with a liquid medium with high rate of heat transfer. in soda, some of the surface of the ice is in contact with gas bubbles that have low rate of heat transfer. Liquid transfers heat (melting the ice) faster than air.
Is it true that it takes a lot of heat to melt a substance with a low melting point?
See the expert answer above for a specific answer to the question. However, if you mean 'what is a low melting point' then it means that the temperature at which the substance becomes a liquid is reasonably easy to get to, so you have to provide less heat to get to the melting point than you would if it were high.
Why does salt have melting point?
Every chemical has a melting point and salt melts under certain heat if it is alone because it can not protect itself against the heat
What is the chemical term for heat transfer in a reaction?
it is called energy transfer or calories transfer
Snowman melting in the sun is it radiation?
The melting of the snowman will be a result of both radiative and convective heat transfer. The sun will directly pour energy into the snowman as radiative heat transfer (although a lot would be reflected too) and the surrounding air, as it is warmed by the sun or by the ground that the sun shines on will transfer heat via convection.
Why is it necessary to use a powder rather than a crystalline sample when determining melting point?
with a crystalline solids ,transfer of heat will not be uniform which can cause an error in the determination of the melting point of a substance .
Factors affecting ice melting?
The main factors affecting ice melting are temperature, sunlight intensity, and air or water movement. Higher temperatures increase the rate of melting, while sunlight accelerates this process by providing additional energy. Air or water movement can also play a role by causing the ice to melt faster due to increased heat transfer.
How does extreme heat affect the environment?
Heat transfer is heat moving between objects. If the heat ends up in the atmosphere it adds to global warming, polar ice melting, and disappearance of low level lands.
What is convective heat transfer?
Convection heat transfer is the transfer of heat by the movement of a fluid.
How does heating affect the environment?
Heat transfer is heat moving between objects. If the heat ends up in the atmosphere it adds to global warming, polar ice melting, and disappearance of low level lands.
What are two examples of heat transfer?
Convection - heat transfer through liquids.Conduction - heat transfer through solids.Radiation - heat transfer through vacuum.
What is the scientific name for ice forming and melting?
The scientific name for ice forming is "freezing" or "solidification." The scientific name for ice melting is "melting" or "fusion."
What is convective heat?
Convection heat transfer is the transfer of heat by the movement of a fluid.
How does temperature affect the rate of heat transfer?
For conductive and convective heat transfer, the rate of heat transfer is proportional to the the temperature difference; if you double the difference you will double the rate of heat transfer. For radiative heat transfer, the rate of heat transfer is proportional to the difference of the 4th powers of the absolute temperatures.
The transfer of heat by fluid?
The transfer of heat by fluid is convection.
What changes igneous or sedimentary rock into metamorphic rock?
Heat, pressure, or transfer of elements through high temperature solutions.
