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What is absolute freezing the point at which everything freezes?
Absolute zero is the lowest possible temperature at which atoms cease moving, causing all molecular motion to stop. At this point, all substances would theoretically freeze as no heat energy is available for movement.
How do molecules move in a cold temperature?
Temperature is the average of all the kinetic energy in something. What we Perceive as "cold" is something with much lower temperature, and thus lower average kinetic energy, than our own, however matter does not have a perception of "cold" or "hot". Additionally, solids (matter below its freezing point) continues to vibrate on a molecular level until Absolute zero is reached, at which point, all molecular movement ceases. It is important to note that the freezing point of materials varies greatly: For example tungsten has a freezing point of greater than 3000 degrees C! It is not actually theoretically possible to attain absolute zero , as the system at absolute zero would need to be removed from the rest of the universe according to the laws of thermodynamics. Additionally,even if you could, the particles would still move with some subtle quantum mechanical effects.
Why is the Kelvin scale not expressed in degrees like the Celsius scale?
The Kelvin scale is an absolute temperature scale that starts at absolute zero, the point at which all molecular motion ceases. Since there are no negative temperatures in the Kelvin scale, it is not expressed in degrees. On the other hand, the Celsius scale is relative to the freezing and boiling points of water, hence it is expressed in degrees.
Who invented the basic units if temperature measures?
Anders Celsius introduced the Celsius scale in 1742, based on a scale where 0 represented the freezing point of water and 100 the boiling point. Lord Kelvin proposed the Kelvin scale in 1848, setting 0 as absolute zero, the theoretical temperature at which all molecular movement ceases.
What is the temperature that freezing occurs?
This is called the melting (or freezing) point
What is absolute freezing the point at which everything freezes?
Absolute zero is the lowest possible temperature at which atoms cease moving, causing all molecular motion to stop. At this point, all substances would theoretically freeze as no heat energy is available for movement.
Is absolute temperature is same like absolute zero?
No, but they are related. Absolute zero is the coldest possible temperature. Absolute temperature is the temperature above this coldest possible temperature - i.e., how much hotter is it than the coldest theoretically possible temperature. Celsius temperature isn't absolute. It starts from the temperature of freezing water, and it needs negative numbers for anything colder than that. Fahrenheit temperature isn't absolute. It says that zero is 32 degrees colder than freezing water, and it needs negative numbers for anything colder than that. Absolute temperature starts from absolute zero. Nothing is colder than that, so absolute temperature is never a negative number.
Difference between absolute zero and absolute temperature?
Freezing is the act/process of freezing something. Freezing point is the temperature at which a liquid substance turns solid. This is due to the slowing down of its molecules due to lack of energy (no heat).
What is argon gas freezing point on absolute temperature scale?
- 185.85 Deg C, - 302.53 Deg F and 87.3 Kelvin
Is the temperature reading of zero on the Celsius equal to absolute zero?
No. Absolute zero is -273 degrees celsius. A reading of zero celsius is the freezing point of water.
How do molecules move in a cold temperature?
Temperature is the average of all the kinetic energy in something. What we Perceive as "cold" is something with much lower temperature, and thus lower average kinetic energy, than our own, however matter does not have a perception of "cold" or "hot". Additionally, solids (matter below its freezing point) continues to vibrate on a molecular level until Absolute zero is reached, at which point, all molecular movement ceases. It is important to note that the freezing point of materials varies greatly: For example tungsten has a freezing point of greater than 3000 degrees C! It is not actually theoretically possible to attain absolute zero , as the system at absolute zero would need to be removed from the rest of the universe according to the laws of thermodynamics. Additionally,even if you could, the particles would still move with some subtle quantum mechanical effects.
What is the scientific measurement for temperature?
The scientific measurement for temperature is typically done in either degrees Celsius (°C) or Kelvin (K). Degrees Celsius is based on the freezing and boiling points of water, while Kelvin is based on absolute zero, the theoretical point at which all molecular motion stops.
Zero celsius is the coldest possible temperature?
No, 0 degrees Celsius is freezing temperature. You can go into the negatives.
What is the relationship between molecular weight and freezing point depression?
The relationship between molecular weight and freezing point depression is that as the molecular weight of a solute increases, the freezing point depression also increases. This means that a higher molecular weight solute will lower the freezing point of a solvent more than a lower molecular weight solute.
What two temperature scales are used in chemistry?
The two temperature scales commonly used in chemistry are Celsius (also known as Centigrade) and Kelvin. Celsius is based on the freezing and boiling points of water, while Kelvin is based on absolute zero, the theoretical point at which all molecular motion ceases.
What is the freezing point of a substance with a molecular weight of n2?
The freezing point of a substance with a molecular weight of N2 is -210.01 degrees Celsius.
Why is the Kelvin scale not expressed in degrees like the Celsius scale?
The Kelvin scale is an absolute temperature scale that starts at absolute zero, the point at which all molecular motion ceases. Since there are no negative temperatures in the Kelvin scale, it is not expressed in degrees. On the other hand, the Celsius scale is relative to the freezing and boiling points of water, hence it is expressed in degrees.
