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Temperature
This category is for questions about the various units and conversions of temperature, as well as the freezing point and boiling point of elements and compounds.
19,212 Questions
What is the temperature of the mesopause in degrees Celsius?
the mesopause is the boundary between the thermospere and the mesospere
Why blood should be stored in cold temperature?
Storing blood at cold temperatures slows down the growth of bacteria and other harmful organisms, extending the shelf life of the blood and preserving its components. Lower temperatures also help prevent the breakdown of red blood cells, maintaining their integrity for transfusion purposes.
What is the entropy change for the vaporization of 1.8 mol H2O at 100 degrees Celsius and 1 ATM?
I think you meant to use the word enthalpy. Enthalpy refers to the flow of heat, while entropy means the "randomness" of a system.
Because The water is already at its boiling point (100o C), it doesn't need to be heated any more to start boiling. To find out how much energy it takes, you'll need to look up the molar heat of vaporization. Simply put, this is the amount of energy it takes to boil one mol of a substance. Water's molar heat of vaporization is 40.2 kJ/mol.
Now, all we need to do is multiply:
1.8mol * 40.2kJ/mol = 72kJ
(Note: The 1 atm is important because that is the pressure at which water's boiling point is 100oC. If there was any less pressure, it would have already boiled. If there was more pressure, it would have to heat up to the new boiling point, then use 72kJ to boil.)
What is 10-40 degrees Celsius in Fahrenheit?
You can use this equation to convert degrees Celsius (ºC) to degrees Fahrenheit (ºF): (ºC x 1.8) + 32 =ºF
When water a 4 degrees C is heated it expands When water at 4 degrees C is cooled it?
contracts. This is due to the unique properties of water, where its density decreases as it approaches its freezing point (0 degrees C). This behavior is responsible for why ice floats on water.
What is the conversion from 21 degrees centigrade to Fahrenheit?
Start by taking the number in Celsius and multiply it by 9. Then divide that number by 5, and then add 32. This is how you convert Celsius to Fahrenheit or use the equation F = (9/5)C + 32
In this case, the answer is about 69.8 degrees Fahrenheit.
What is difference between critical temperature and boiling point?
The critical temperature is the highest temperature at which a substance can exist in a distinct liquid and gas phase, above which the substance becomes a supercritical fluid. The boiling point is the temperature at which the vapor pressure of a liquid is equal to the external pressure, causing the liquid to transition into a gas phase.
What does 30 degrees Fahrenheit below zero equals in Celsius?
30 degrees Fahrenheit below zero is equal to approximately -34.4 degrees Celsius.
What is the melting point of the element phosphorus?
Phosphorus in two elementary forms: melting points: (white) 44.2 °C, (black) 610 °C
What is 933.47 K in degrees celsius?
933.47K = 660.32ºC
You can use this equation to convert Kelvin to degrees Celsius: ºC = K - 273.15
What is 60-70 Celsius to Fahrenheit degrees?
Use this formula to convert degrees Celsius (C) to degrees Fahrenheit (F): (C x 1.8) + 32 = F
What is 225 degrees Fahrenheit converted to Celsius?
225 degrees Fahrenheit is approximately 107 degrees Celsius. The formula to convert Fahrenheit to Celsius is (°F - 32) x 5/9.
How hot is 31 degrees celsius?
31 degrees Celsius is equivalent to 87.8 degrees Fahrenheit. It is considered warm, but not extremely hot.
What is water that stays liquid form at temperature below freezing called?
Water that stays liquid at temperatures below freezing is called supercooled water. This phenomenon occurs when the water is kept in a very pure state and is cooled slowly below its freezing point without forming ice crystals.
Can Popsicle melt at 5degrees Celsius?
Yes, a Popsicle can melt at 5 degrees Celsius because that temperature is above the freezing point of water, causing the ice in the Popsicle to melt. However, the rate of melting may be slower compared to at higher temperatures.
What is 21.5 degrees Celsius in fahrenheit?
Start by taking the number in Celsius and multiply it by 9. Then divide that number by 5, and then add 32. This is how you convert Celsius to Fahrenheit or use the equation F = (9/5)C + 32
In this case, the answer is about -355 degrees Fahrenheit.
What is the rule for converting celsius to Fahrenheit degrees?
To convert Celsius to Fahrenheit, you can use the formula: Fahrenheit = Celsius * 9/5 + 32. Simply multiply the Celsius temperature by 9/5 and then add 32 to get the equivalent Fahrenheit temperature.
How does altitude affect temperature on earth?
It depends on the on what sphere of the atmosphere you are talking about. At ground level (troposhere) it gets colder as altitude rises. Once the altitude reaches the stratosphere the temperature becomes warmer then cools down again as it reaches the stratopause, and continues to decline as altitude increases in the mesophere until the mesopause. The temperature then rises significantly when the altitude is high enough to be considered the thermosphere.
What do you do to find what temperature is equal to kelvin?
To find something in degrees kelvin from degrees Celsius, you add 273. So, 100 degrees Celsius would be 373 Kelvin and 0 degrees Celsius would be 273 Kelvin.
*You can never have negative Kelvin numbers. 0 degrees Kelvin is considered absolute 0, where all atomic motion stops.
What temperature does mercury turn to gas?
Its melting/freezing point is -39°C. It turns into gas at 356°C.
