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Chemistry

AT WHAT TEMPERATURE DOES AN ETHANOL SOLUTION FREEZE

What is the freezing point of ethanol?

Pure ethanol freezes at about -114 °C. However, by adding more and more water to this alcohol, the freezing point of such a solution begins to approach 0 °C. For example, vodka, a 40% solution of ethanol and water, freezes at -23 °C.
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How ammonium nitrate decomposes?

Ammonium nitrate NH4NO3 decomposes in an exothermic reaction and produce two gaseous products from solid reactant: \( NH_{4}NO_{3} _{(solid)} \rightarrow N_{2}O_{(gas)} + 2H_{2}O_{(gas)} \) Enthalpy change is \( \Delta H…
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