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How many grams of sugar must be dissolved in 300 grams of water in order to change the freezing point 2.5 degrees Celsius?
Wiki User
∙ 14y ago
13.643224
Wiki User
∙ 14y ago
To decrease the freezing point of water by 2.5 degrees Celsius, you would need to dissolve approximately 37.5 grams of sugar in 300 grams of water. This is calculated based on the colligative property that states freezing point depression is directly proportional to the molality of the solute in the solution.
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The freezing point of helium is -272 degrees Celsius The original temperature of a sample of helium is 3 degrees Celsius how much must the temperature change to ensure that helium freezes?
The temperature must decrease by 275 degrees Celsius to reach the freezing point of helium at -272 degrees Celsius.
Is it true that the temperature must drop lower than 0 Celsius for water to freeze when a solute is dissolved in the water?
Yes if something is dissolved in the water then it is no longer pure water and the freezing point will change
What temperature does a phase change begin?
It will start to melt if the temperature rises above 0 degrees Celsius or 32 degrees FahrenheitOfficially, the melting temperature of ice is zero degrees Celsius (or 32F). The freezing temperature does vary dependent on the electrolytes added to the water solution. For example, ocean water (salt water), freezes at ~-18 degrees Celsius (or 0F). Various solutions at different concentration of solute offer various degrees of melting/freezing. At 0 degrees Celsius.
At what degrees celsius does a liquid turn to a solid?
The specific temperature at which a liquid turns into a solid is known as the freezing point. This temperature can vary depending on the substance. For water, the freezing point is 0 degrees Celsius.
How water change into ice?
Water changes into ice when its temperature decreases to 0 degrees Celsius (32 degrees Fahrenheit). This causes the water molecules to slow down and come closer together, forming a solid crystalline structure. This process is known as freezing.
What is the freezing point of seltzer water?
The freezing point of seltzer water is around 0 degrees Celsius (32 degrees Fahrenheit), which is the same as the freezing point of pure water. The dissolved carbon dioxide in seltzer water does not significantly change its freezing point.
How does water change into a solid?
The process of freezing. The freezing point of water is zero degrees Celsius, or 32 degrees Fahrenheit.
What is water at 20 degree Celsius?
It just remains as water. The freezing point of water is 0 degrees Celsius, while the freezing point is 100 degrees Celsius. Therefore at 20 degrees Celsius, there is no change in state and it just remains as water.
What temperature does water freeze in Celsius?
Zero degrees Celsius. The Celsius temperature scale was defined with zero as the freezing point of water, and 100 as the boiling point of water. (That's for pure fresh water at sea-level atmospheric pressure. Adding impurities to the water will change the freezing and boiling temperatures, and different air pressures will change the boiling temperature of water.)
The freezing point of helium is -272 degrees Celsius The original temperature of a sample of helium is 3 degrees Celsius how much must the temperature change to ensure that helium freezes?
The temperature must decrease by 275 degrees Celsius to reach the freezing point of helium at -272 degrees Celsius.
What is the boiling point of fresh water?
There is no specific boiling point of rain water. It may have dissolved some atmospheric gases, which can change its boiling or freezing point. The boiling and freezing point of rain water depends on the content of the dissolved gases.
Are celsius and Fahrenheit degrees the same size?
No. Celsius "degrees" are larger than Fahrenheit "degrees", and so represent a larger change in temperature. One Celsius "degree" is equal to 1.8 Fahrenheit "degrees". The Fahrenheit scale has 180 divisions (degrees) between 32° and 212° - the freezing and boiling points of water. The Celsius scale has only 100 divisions (degrees) between 0° and 100° - the freezing and boiling points of water. So the Celsius degrees are "larger" degrees, and a change in temperature in Celsius will be 1.8 times as large on the Fahrenheit scale. That is where the 5/9 and 9/5 fractions come in on the conversion formulas. (see related question)
Is it true that the temperature must drop lower than 0 Celsius for water to freeze when a solute is dissolved in the water?
Yes if something is dissolved in the water then it is no longer pure water and the freezing point will change
A substance has a temperature change from 20 degrees celsius to 45 degrees celsius. This corresponds to what temperature change in Fahrenheit degrees?
20 degrees Celsius is 68 degrees Fahrenheit. 45 degrees Celsius is 113 degrees Fahrenheit. So 25 degrees change Celsius = 25 x 1.8 = 45 degrees Fahrenheit. 1 degree change in Celsius is equivalent to 1.8 degrees change in Fahrenheit. Scroll down to related links and look at "Conversion of Temperature Units".
If the temperature changes by 100 K by how much does it change in and degC?
A temperature change of 100 K is equivalent to a change of 100 degrees Celsius. This is because the size of a degree Celsius and a Kelvin is the same, but the zero point is different (0 K is absolute zero while 0°C is the freezing point of water).
Is water freezing at zero degrees Celsius physical or chemical change?
Water freezing at zero degrees Celsius is a physical change. This is because the change in temperature causes the water molecules to slow down and form a solid structure, without altering the chemical composition of water.
What is the tempertaure change if it was 22 degrees celsius and dropped to -6 degrees celsius?
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