Question

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Write About Dry Ice

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Answer 1

▪Dry ice is solid carbon dioxide. It is sometimes called "cardice".

▪Dry ice density usually ranges between 1.2 and 1.6 kg/dm3.

▪The molecular weight of dry ice is 44.01 g/mole.

▪Dry ice is nonpolar, with a dipole moment of zero. It has low thermal and electrical conductivity.

▪The first published observation of dry ice was in 1835 by French chemist Charles Thilorier. He noted the formation of dry ice when a container of liquid carbon dioxide was opened.

Answer 2

Dry ice, sometimes referred to as "cardice" (chiefly by British chemists), is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere). It is useful for preserving frozen foods where mechanical cooling is unavailable.