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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 pH of pure water at temperatures other than 25 degrees Celsius?

I'd have thought a table like this would be in the CRC Handbook of Chemistry and Physics, but I couldn't find it in mine (60th Edition). I did find a table listing the ionization constant for water at several different temperatures, so based on that: * 7.47 at 0oC * 7.27 at 10oC * 7.08 at 20oC * 6.92 at 30oC * 6.77 at 40oC * 6.63 at 50oC * 6.51 at 60oC Note: this does not mean that pure water at 10 oC is alkaline and water at 60oC is acidic! It's neutral in all cases. PS: Per the Handbook, it's actually 24oC where the pH of water is 7.00. At 25oC, it's very slightly less. PPS: It's probably listed in exhaustive detail in the International Critical Tables, but I don't have a set handy.

What safe compounds added to water reduce the freeze point the most?

The most common safe compound added to water to reduce the freeze point is ethylene glycol, commonly found in antifreeze. Another compound is propylene glycol, which is also used in antifreeze but is less toxic than ethylene glycol. Both compounds are effective at lowering the freeze point of water.

How are degrees Celsius turned into kelvin?

Use this equation to convert Celsius/Centigrade to degrees Kelvin: [K] = [°C] + 273.15

What is 350 degrees celsius on the Fahrenheit scale?

Exactly 350 °F is equal to 177.66 °C

The conversion formula is °C = 5/9 (°F - 32)

Melting and boiling point of arsenic?

Melting point (under pressure): 1090 K (817°C or 1503°F)

Arsenic has not a true boiling point; arsenic sublimes at 887 K (614°C or 1137 °F).

What is the temperature 77K in degrees celsius?

To convert Kelvin to Celsius, subtract 273.15 from the Kelvin temperature. Therefore, 77K is equal to -196.15 degrees Celsius.

What is minus 54 degrees Fahrenheit in celsius?

-54 degrees Fahrenheit is approximately -48.9 degrees Celsius.

What is 140 fahrenheitin celsius degrees kelvin?

140 degrees Fahrenheit is equal to approximately 60 degrees Celsius and 333 Kelvin.

Why are degrees important?

Degrees are important because they provide individuals with specialized knowledge and skills in a particular field, improving their career prospects and earning potential. Degrees also serve as a signal to employers of an individual's dedication, commitment, and ability to learn and apply complex concepts. In some professions, a degree is a requirement to gain entry or advance in the field.

What is the degree celsius of 293k and 470k?

293 K is approximately 20°C, and 470 K is approximately 197°C.

Does the temperature of a body depend on the frame from which it is observed?

No, the temperature of a body does not depend on the frame from which it is observed. Temperature is an intrinsic property of an object that does not change based on the observer's frame of reference.

Is temperature measured in the shade?

Yes, temperature is typically measured in the shade to avoid any influences from direct sunlight which can artificially raise the temperature. This helps to get a more accurate representation of the air temperature.

What temperatures are equal to 273 K?

273.15° Kelvins = 0° Celsius = 32° Fahrenheit = 460.67° Rankine = 0° Réaumur

What is 98.8f in Celsius?

Conversion from Fahrenheit to Celsius is done in three steps:

1. Subtract 32 from value in degrees Fahrenheit.

2. Multiply result of step 1 by 5.

3. Divide result of step 2 by 9.

Conversion formula: [°C] = ([°F] - 32) * 5 / 9 = (98.8 - 32) * 5 / 9 = 37.11 °C

What is the meltiing and boilingpoint of water?

boiling point is 212 faherenheit

freezing is 32 degrees faherenheit

Why did the temperature rise in flask a?

The temperature in flask A rose because heat was transferred from the surroundings to the contents of the flask, increasing the kinetic energy of the molecules and causing their temperature to increase.

What is 67 degrees Fahrenheit in Kelvin?

67 degrees Fahrenheit is equivalent to about 292.6 Kelvin. To convert Fahrenheit to Kelvin, you can use the formula: K = (F + 459.67) x 5/9.

Which color of the candle has a higher temperature?

The color of a candle does not determine its temperature. The primary factors that influence a candle's temperature are the type of wax used, the size and design of the wick, and external conditions such as air temperature and drafts.

What temperature is equal to -34C?

-34 degrees Celsius is equal to -29.2 degrees Fahrenheit.

What is the absolute zero on the Kelvin scale?

Absolute zero on the Kelvin scale is 0 Kelvin, which is equivalent to -273.15 degrees Celsius. At this temperature, all molecular motion ceases, making it the lowest possible temperature in the universe.

How much energy is required to heat 955 g of water from 20 degrees C to 100 degrees C?

4.1858 joules of energy will raise the temperature of 1 g of water by 1oC.

Thus, 4.1858 * 955 * 80 = 319795.12 joules of energy is required to raise the temperature of 955 g of water by 1oC.

How do you solve a problem to find out at what temperature are Fahrenheit and Celsius the same?

To find the temperature at which Fahrenheit and Celsius are the same, you can use the formula (F = C \times \frac{9}{5} + 32). Set F equal to C and solve for the temperature. This will give you the temperature at which they are equal.

Why is the temperature higher in the summer months?

Note: This response is for the northern hemisphere....

In the summer, even though the earth is slightly farther away from the sun, the northern hemisphere is tilted toward the sun. This means that the amount of time that the sun is shining on the surface in a 24 hour period is longer (longer days), and it also means that the sun's rays and energy are coming more "Straight down" at us instead of coming at an angle.

The combination of the longer days (meaning the sun is warming the earth for a longer time) as well as the more direct sunlight (it doesn't have to go through as much atmosphere to get to the ground) makes the temperature higher in the summer.