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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 60 degrees Celsius in kelvin?
The answer is 333.15 K (approx.). The Kelvin scale starts at absolute zero and is used in scientific laboratories. Celsius is for general use and set 0 and 100 as melting and boiling point of water respectively. To convert from C to K, add 273.15 to C.
Why are conditions 200 atmosphere pressure and 450 degrees used in the industrial process?
The combination of high pressure (200 atmosphere pressure) and high temperature (450 degrees) is frequently used in industrial processes to create the ideal conditions for chemical reactions to occur efficiently and quickly. These conditions can help increase reaction rates, improve product yields, and selectivity, as well as allow for the use of cheaper or more readily available raw materials.
What is 45000 Fahrenheit in Celsius?
45,000 degrees Fahrenheit is approximately equal to 24,982.22 degrees Celsius.
How many degrees does the temperature drop for each 100 meters that air rises?
The temperature typically drops by approximately 0.98 degrees Celsius for every 100 meters of elevation gain in the Earth's atmosphere. This relationship is known as the environmental lapse rate.
Is 76 Fahrenheit or 75 Fahrenheit colder?
75 Fahrenheit is colder than 76 Fahrenheit. Each degree change represents a small difference in temperature, so 75 is one degree lower than 76.
Why did your thermometer never hit 100 degrees Celsius when boiled?
You are probably above sea level so that the atmospheric pressure is lower than sea level pressure. Water boils at lower temperatures as the pressure is lowered. The other possibility is that the thermometer is not calibrated correctly, but I'd go with the atmospheric pressure is below sea level pressure.
How does the number of dissolved ions in solution affect the boiling point of of that solution?
Increasing the number of dissolved ions in a solution raises its boiling point. This is due to the ions disrupting the formation of vapor molecules, leading to a higher temperature required for the liquid to vaporize. The phenomenon is known as boiling point elevation.
How do you convert centigrade to joule?
Centigrade (Celsius) is a unit of temperature, while joule is a unit of energy. There is no direct conversion between the two. To convert temperature to energy, you would need to consider other factors such as heat capacity and specific heat of the material.
The specific heat capacity of lead is 0.128 J/g°C. First, calculate the change in temperature: 98.5°C - 22.0°C = 76.5°C. Next, calculate the heat energy using the formula Q = mcΔT where m = 65g, c = 0.128 J/g°C, and ΔT = 76.5°C. Substituting the values gives Q = 65g * 0.128 J/g°C * 76.5°C = 625.2 Joules.
What is the melting point of a metallic element?
The melting point of a metallic element can vary widely depending on the specific element. For example, the melting point of iron is 1538 degrees Celsius, while the melting point of mercury is -38 degrees Celsius.
What is 1221 degrees Fahrenheit in kelvin?
1221 degrees Fahrenheit is equivalent to 661.483 Kelvin. To convert Fahrenheit to Kelvin, you can use the formula K = (F + 459.67) x 5/9.
What type of precipitation can occur if dew point is 15 degrees Celsius?
If the dew point is 15 degrees Celsius, it is unlikely to result in any form of frozen precipitation like snow or sleet. Instead, it may lead to rain or drizzle depending on other atmospheric conditions. Dew point is the temperature at which air becomes saturated with moisture, so if it is 15 degrees Celsius, there is a high likelihood of seeing rain.
How hot is 5000 degrees Celsius in Fahrenheit?
5000 degrees Celsius is equal to 9032 degrees Fahrenheit.
Convert 100 degrees Fahrenheit to celsius?
C = 5/9 (F - 32)
c = 5/9 (100 - 32) = 5/9 (68) = 37.8 deg C. (rounded)
What happens on the Kelvin scale at 0 K?
At 0 Kelvin, all molecular motion ceases, meaning particles have minimal energy. This extreme temperature is known as absolute zero, where substances have no thermal energy and all matter theoretically comes to a stop.
What one is colder 60 degrees Celsius or 60 degrees Fahrenheit?
Its kind of improper to say one is colder b/c temperature measures heat. Cold is the absence of hea.. how ever it a simple math conversion for Celsius to Fahrenheit or vice versa... C x 1.8 + 32 = F so 60 degrees Celsius is 140 degrees Fahrenheit
Which is colder 36 degrees Fahrenheit or 38 degrees Fahrenheit?
The higher the temperature the larger the reading therefore 36F is colder than 38F
How do you find Celsius from kelvin?
To convert Kelvin to Celsius, subtract 273.15 from the Kelvin temperature. For example, if you have 300 Kelvin, subtract 273.15 to get 26.85 degrees Celsius.
What is the Difference between flash point and boiling point?
oiling Point
Boiling point is a property of a liquid. The boiling point is defined as the temperature, where the vapor pressure of the liquid is equal to the external pressure on the liquid. Ideally, a liquid placed at a vacuum space would be at its melting point on zero kelvins (absolute zero). Higher the external pressure higher would be the melting point. This is the simple theory behind pressure cookers. A pressure cooker is a device, where the vapor from the heated water is trapped inside the container. The high amount of vapor inside the container makes external pressure on the liquid higher. This high pressure results a higher boiling point. This method is very useful especially on higher altitudes. Since the atmospheric pressure is lower on higher altitudes, water will boil between 80 0C - 90 0C. This will cause undercooked meals. A liquid boils when it exceeds its saturation temperature at the corresponding saturation pressure. Saturation temperature is defined as the temperature corresponding to the highest thermal energy the liquid can hold without changing its state to vapor at the given pressure. The saturation temperature is also equivalent to the boiling point of the liquid. Boiling occurs when the thermal energy of the liquid is enough to break the intermolecular bonds. The normal boiling point is defined as the saturation temperature at atmospheric pressure. The boiling point varies only between the triple point and the critical point of the liquid.
What is 77 celsius in Fahrenheit?
Conversion formula: [°F] = [°C] * 9 / 5 + 32 = 77 * 9 / 5 + 32 = 170.6 °F
First, note that Kelvin is typically not expressed in degree(s), just Temperature Kelvin
(e.g., 50 K for 50 kelvin). ***(note2 at bottom, about kelvin vs degree kelvin)
Kelvin is a temperature scale based upon 0K being absolute zero*(note1 at bottom), which is currently the lowest possible temperature. This is not possible to actually achieve, but it can be determined as the point at which a 'perfect' (ideal gas) gas would have zero pressure and volume as it contracts on cooling. As most gases behave very much like a perfect gas and the deviation of real gases is well understood, this allows us to calculate the exact temperature at which this would happen. That temperature is zero Kelvin.
For the ideal gas this is the point at which the molecules (assumed to be perfect non-interacting mathematical points) stop all motion. So the pressure (which is caused by the gas molecules bouncing off the container walls) is zero. At this point also, the gas has zero kinetic energy.
(In reality quantum mechanics shows that particles must have a certain amount of energy even at zero Kelvin. This is termed the 'zero point' energy, and is manifest in a tiny amount of vibrational energy. So in reality there is residual motion in a gas at absolute zero, but this cannot exert any pressure as that would involve removing the residual energy which cannot happen. So in quantum terms it is the point at which no mechanical energy can be extracted from the system.)
The Kelvin scale is named for British mathematician and physicist William Thompson, 1st Baron Kelvin (1824-1907), who did much to unify the modern field of Physics.
Equivalent Temperatures in Other Temperature Scales
-273.16° Celsius
-459.67° Fahrenheit
0° Rankine**
-218° Réaumur
*Note1 - The Kelvin scale is indeed based upon the triple point of water, being assigned to 273.16 K; this point is beyond the scope of this discussion, however.
**Kelvin and Rankine are both based upon 0 as absolute zero, however Kelvin uses the interval of 1 K is equal to 1° Celsius, and Rankine uses the interval of 1° Rankine is equal to 1° Fahrenheit.
***Note2 - The accepted SI unit for temperature is K, not, degree(s) K. In scientific papers you will typically only find K, though it is still colloquially accepted to use degree Kelvin when you mean Kelvin.
