
#REDIRECT Melting point
The melting point of a solid is the temperature at which it changes states of matter from solid to liquid. When considered as the temperature of the ''reverse'' change, it is referred to as the freezing point. For example, the melting point of the chemical element mercury (element) is 234.32 kelvins (−38.83 °C or −37.89 Fahrenheit). Certain materials, such as glass, may harden without crystalizing; this is called an amorphous solid. Unlike the boiling point, the melting point is relatively insensitive to pressure. The material with the highest known melting point at atmospheric pressure is graphite, with a melting point of 3948 kelvins. Melting point is often used to ascertain purity of and characterise organic compounds. The melting point of a pure substance is always higher than the melting point of an impure sample of that particular substance. When two chemical substances are mixed, the melting point of the resultant mixture will be lower than the melting point of either constituent. The mixing ratio that results in the lowest possible melting point is known as the eutectic. ==See also== * phases of matter * triple point * Freezing-point depression lv:Kušanas temperatūra Chemical properties
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Words begining with Melting_point:
Melting-point
Melting_Point
Melting_point
Melting_points
Melting_points_of_the_elements_(data_page)
Melting_points_of_the_elements_(data_page)
Melting Point
#REDIRECT Melting point
Melting point
The melting point of a solid is the temperature at which it changes states of matter from solid to liquid. When considered as the temperature of the ''reverse'' change, it is referred to as the freezing point. For example, the melting point of the chemical element mercury (element) is 234.32 kelvins (−38.83 °C or −37.89 Fahrenheit). Certain materials, such as glass, may harden without crystalizing; this is called an amorphous solid. Unlike the boiling point, the melting point is relatively insensitive to pressure. The material with the highest known melting point at atmospheric pressure is graphite, with a melting point of 3948 kelvins. Melting point is often used to ascertain purity of and characterise organic compounds. The melting point of a pure substance is always higher than the melting point of an impure sample of that particular substance. When two chemical substances are mixed, the melting point of the resultant mixture will be lower than the melting point of either constituent. The mixing ratio that results in the lowest possible melting point is known as the eutectic. ==See also== * phases of matter * triple point * Freezing-point depression lv:Kušanas temperatūra Chemical properties
See other meanings of words starting from letter:
M
MA | MB | MC | MD | ME | MF | MG | MH | MI | MJ | MK | ML | MN | MO | MP | MR | MS | MT | MU | MW | MX | MY | MZ |Words begining with Melting_point:
Melting-point
Melting_Point
Melting_point
Melting_points
Melting_points_of_the_elements_(data_page)
Melting_points_of_the_elements_(data_page)
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