Question

what is a freezing mixture ? State its use​

Answer 1

Freezing Mixture

a combination of substances that when mixed lower the temperature of the mixture by absorbing the melting heat or the heat of solution of the system’s components, which can be liquid, solid, or both. To attain the lowest possible temperature, the components of a freezing mixture are used in quantities that will form a cryohydrate. Water, ice, snow, and various salts and acids will form freezing mixtures that attain a temperature of — 50°C. Salts in dilute acid solutions lower temperatures more than salts in a water solution. Substitution of crushed ice for water makes it possible to attain lower temperatures because, in addition to absorbing the heat of solution of the salt, the mixture absorbs the melting heat of the ice