
Fill in the blanks
Freezing mixture contains _________ and __________.
Answer
509.4k+ views
Hint: Freezing mixtures are the combination of two or more components whose freezing point is lower than its constituents. The components may be solid, liquid or both. These are used mainly in laboratories to maintain low temperatures.
Complete step by step answer:
When the substances are mixed to form freezing mixture, it absorbs the melting heat. The components are used in certain quantities to attain the lowest temperature.
Water, ice, snow, salts, alcohols and acids can form freezing point mixtures and it attain a temperature of . The salts in dilute acid solution can decrease the temperature more than the salts in a water solution.
Generally, freezing mixture contains salt and ice. It may also contain dry ice and alcohol. These are used generally to attain a temperature below the freezing point of water.
When salt and ice are mixed, it will not be in equilibrium. Thus the ice melts and salt gets dissolved in water. When the salt is dissolved, heat is absorbed. This heat is taken from the salt solution or surroundings. If the heat is from the salt solution, then its temperature is decreased and if it is from surroundings, then the temperature of the surroundings will be decreased.
Freezing point depression occurs when a component is mixed with the solvent. When a component is freezed, it gets separated into solute crystals and solvent crystals.
freezing mixture contains salt and ice
Note:
Freezing mixture can also be used for deicing. Sodium chloride is used to melt ice. When it is dissolved in water, it decreases the melting point. This is due to the freezing point depression. Thus we can say that salt can prevent melting ice from refreezing.
Complete step by step answer:
When the substances are mixed to form freezing mixture, it absorbs the melting heat. The components are used in certain quantities to attain the lowest temperature.
Water, ice, snow, salts, alcohols and acids can form freezing point mixtures and it attain a temperature of
Generally, freezing mixture contains salt and ice. It may also contain dry ice and alcohol. These are used generally to attain a temperature below the freezing point of water.
When salt and ice are mixed, it will not be in equilibrium. Thus the ice melts and salt gets dissolved in water. When the salt is dissolved, heat is absorbed. This heat is taken from the salt solution or surroundings. If the heat is from the salt solution, then its temperature is decreased and if it is from surroundings, then the temperature of the surroundings will be decreased.
Freezing point depression occurs when a component is mixed with the solvent. When a component is freezed, it gets separated into solute crystals and solvent crystals.
freezing mixture contains salt and ice
Note:
Freezing mixture can also be used for deicing. Sodium chloride is used to melt ice. When it is dissolved in water, it decreases the melting point. This is due to the freezing point depression. Thus we can say that salt can prevent melting ice from refreezing.
Recently Updated Pages
Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Trending doubts
The flightless birds Rhea Kiwi and Emu respectively class 11 biology CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

1 Quintal is equal to a 110 kg b 10 kg c 100kg d 1000 class 11 physics CBSE

Net gain of ATP in glycolysis a 6 b 2 c 4 d 8 class 11 biology CBSE
