0
What else can I help you with?
How you can determine the melting point of a compound using capillary tubes and a digital melting point apparatus that need to be calibrated each time of use?
Melting points are ranges usually. It starts when the first crystal of the substance being tested melts and ends when the last crystal melts. Therefore the smallest sample possible and the slowest rate of heating will give the most accurate melting point.
What name do we give temporary changes toa material?
Temporary changes to a material are referred to as "physical changes." These changes alter the state or appearance of a material without affecting its chemical composition, such as melting, freezing, or dissolving. Unlike chemical changes, physical changes are usually reversible.
What is capillary reaction?
Usually called 'capillary attraction' or 'capillary action' it refers to the way very thin tubes can draw water up themselves without any external changes in pressure or without suction being applied.
How thermal evaporation takes place?
Thermal evaporation takes place in the following manner: The material to be evaporated is taken in a crucible (usually called as boat) and the material is melted by heating the system up to the melting point of that material ,the material evaporates and gets sticks on the substrate (usually glass)
What is nitrogen cellulose?
low melting gas, usually used in gun.
What mining of melting point?
The melting point is the temperature at the solid and liquid states of the material are in equilibrium; if the temperature is even very slightly above the melting point, the material will melt, and if it's even very slightly below, the material will freeze. Technically the melting point depends on the pressure, but usually the dependence is not very strong; you have to change the pressure a lot (and by "a lot" I mean many multiples of normal atmospheric pressure) to change the melting point by enough to even notice.
How you can determine the melting point of a compound using capillary tubes and a digital melting point apparatus that need to be calibrated each time of use?
Melting points are ranges usually. It starts when the first crystal of the substance being tested melts and ends when the last crystal melts. Therefore the smallest sample possible and the slowest rate of heating will give the most accurate melting point.
How capillary thermostat works?
The capillary thermostat has a capillary tube which is usually filled with a refrigerant which usually contracts or expands due to temperature. As the temperature expands this liquid and in turn this pressure presses against a bellows that pushes against a switch , the switch closes and the refrigerator runs until the capillary cools enough to decrease the pressure and the opposite happens.
What name do we give temporary changes toa material?
Temporary changes to a material are referred to as "physical changes." These changes alter the state or appearance of a material without affecting its chemical composition, such as melting, freezing, or dissolving. Unlike chemical changes, physical changes are usually reversible.
What does the term GM products mean?
GM = Genetically Modified. It means that the genes of the species have been modified, usually by introducing a gene from some other species.GM = Genetically Modified. It means that the genes of the species have been modified, usually by introducing a gene from some other species.GM = Genetically Modified. It means that the genes of the species have been modified, usually by introducing a gene from some other species.GM = Genetically Modified. It means that the genes of the species have been modified, usually by introducing a gene from some other species.
What makes igneous rocks?
Ultimately a combination of an increase in temperature or a loss of pressure cause the partial melting of mantle material (usually by decompression), or the partial melting of mantle material near a subducting slab due to the release of volatiles into the surrounding material, lowering it's melting temperature to a point where it becomes liquid. This lower density material will then be of higher buoyancy and migrate upwards toward Earth's surface where it will either form an igneous rock intrusion (where the molten magma cools and solidifies under the surface), or an extrusive igneous rock where the lava erupts onto Earth's surface and solidifies.
What is high melting point?
The melting point of a solid is the temperature at which it changes STATE from SOLID to LIQUID. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends (usually slightly) on pressure and is usually specified at STANDARDatmospheric pressure.
What is capillary reaction?
Usually called 'capillary attraction' or 'capillary action' it refers to the way very thin tubes can draw water up themselves without any external changes in pressure or without suction being applied.
What usually has a lower melting point than ionic solids?
Covalent compounds have a lower melting point.
What type of blood is used for a microhematocrit test?
For a microhematocrit test, capillary blood, usually obtained from a finger or heel stick, is used. The blood sample is placed into a special capillary tube and spun in a centrifuge to separate the components, allowing for measurement of the packed cell volume (hematocrit).
Which color melts faster blue red or green?
The color of an object does not affect how quickly it melts. The melting point of a material is determined by its chemical composition and structure, not its color.
How thermal evaporation takes place?
Thermal evaporation takes place in the following manner: The material to be evaporated is taken in a crucible (usually called as boat) and the material is melted by heating the system up to the melting point of that material ,the material evaporates and gets sticks on the substrate (usually glass)
