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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 boiling point of water in far en height?

The boiling point of water at standard atmospheric pressure is 212°F in the Fahrenheit scale.

Why does air at 75 relative humidity and 30 degrees celsius make your skin feel stickier than air at 75 relative humidity at 10 degrees celsius?

Air at a higher temperature can hold more moisture, so the warmer air at 30 degrees Celsius will evaporate less sweat from your skin compared to the cooler air at 10 degrees Celsius. This reduced evaporative cooling can make you feel stickier in the warmer air even though the relative humidity is the same.

What happens when things melt or boil?

they have a chemical change.

Additional answer

No they don't, they have a physical change. Some things may decompose at their boiling point but that's nothing to do with melting or boiling, just being hot.

What is 160 celcius converted to Fahrenheit?

160 degrees Celsius is equal to 320 degrees Fahrenheit.

What is the change of entropy when an icicle melts at 2 degrees Celsius?

The change in entropy when an icicle melts at 2 degrees Celsius is positive. This is because the solid ice undergoes a phase change to become liquid water, increasing the randomness and disorder of the molecules, leading to a higher entropy.

What happenes to molecules when water is heated from 90 Celsius to 180?

As water is heated from 90°C to 180°C, the water molecules gain kinetic energy and move faster. At 100°C, water undergoes a phase change from liquid to gas (steam), so by 180°C the water would have fully evaporated into steam. The increased temperature causes the water molecules to break free from the liquid state and become a gas.

Why if a gas is present at 27 Celsius its volume becomes doubled when temperature increases to 327 Celsius under constant pressure?

pV = nRT

we can firstly assume that n (number of moles) and R (gas constant) do not change and as pressure is also kept constant, the temperature must be proportional to the volume. Thus if temperature is increased from 27C (300K) to 327C (600K) and is doubled, the volume must also double.

Why does propanes boils at 42 degrees celcius?

Propane boils at -42 degrees Celsius because it has a low boiling point due to its weak intermolecular forces. At this temperature, the vapor pressure of propane becomes equal to atmospheric pressure, causing it to boil and turn into a gas.

When the boiling point of water is 100 degrees celsius is it a physical or chemical property?

The boiling point of water at 100 degrees Celsius is a physical property, as it is a characteristic of the substance related to its state of matter, specifically its transition from liquid to gas. Chemical properties, on the other hand, involve the substance's ability to undergo chemical changes or reactions.

What substance is expected to have the highest boiling point OCl SCl2 SeCl2 TeCl2?

TeCl2 is expected to have the highest boiling point among OCl, SCl2, SeCl2, and TeCl2 because it has the largest atomic size and highest molar mass. As molecular size and molar mass increase, the van der Waals forces between molecules also increase, resulting in higher boiling points.

Convert 15 degrees Celsius to Fahrenheit degrees?

Start by multiplying 15 with 9 and divide by 5. Then add 32 to the answer.

In this case the answer is 59 degree fahrenheit.

How much energy is required to raise 21kg of water by 2 degrees Celsius?

The specific heat capacity of water is 4.18 J/g°C. To calculate the energy required to raise 21 kg of water by 2 degrees Celsius, use the formula: Energy = mass x specific heat capacity x temperature change. Plugging in the values, the energy required is 21,084 Joules.

What temperature is 23 degrees Celsius warmer than minus 7degrees Celsius?

23 degrees Celsius warmer than -7 degrees Celsius is 16 degrees Celsius. (-7 + 23 = 16)

A quanity of gas has a volume of 0.20 cubic meter an absolute temperature of 333 degrees kelvin when the temperature of the gas is raised to 533 degrees Kelvin what is the new volume of the gas?

Okay. Allow me to organize this information:

V1 = 0.20 m3

T1 = 333 K (Note: Never write degrees before Kevin. It's just kelvin.)

T2 = 533 K - 333 K = 200. K ("." for 3 significant figures)

V2 = ?

This can be solved using the combined gas law, (P1V1)/(n1T1) = (P2V2)/(n2T2) (easier to remember) and removing the unchanged variables to get Charles's Law, V1/T1 = V2/T2.

0.20 m3/333 K = V2/200. K

200. K(0.20 m3/333 K) = V2

V2 = 0.12 m3

When will ice melt in celcius?

0° Celsius is the temperature at which ice starts to melt.

What is the freezing point of water in SI?

The freezing point of water in the SI system of units is 0 degrees Celsius or 273.15 Kelvin.

How long does it take for one cup of water to freeze at 32 degrees F?

It typically takes about 3-4 hours for one cup of water to freeze at 32 degrees Fahrenheit in a standard freezer. Factors like the initial temperature of the water, container material, and the efficiency of the freezer can affect freezing time.

Is 60 degrees Fahrenheit warm?

60 degrees is technically cool but not cold it is more than likely chilly and windy! hope that answers you question

What zero degree as its freezing point and 100 degrees as its boiling point?

Depending on the Temperature scale ( Celsius) in this case, it is WATER.

On the Fahrenheit SCale is is 32 oF and 212 oF

On the Absoluate Scale it is 273K and 373K

On the Reaumer SCale is it 0 oR and 80 oR .

If a substance has a temperature of 273 kelvins what is it's temperature in degrees celsius?

273 Kelvin is equal to a temperature of -0.15 degrees Celsius.

  • K to C Formula: C = K - 273.15

Is 78 hot or cold?

Terms like 'hot' and 'cold' must always be compared to something. Compared to our bodies, whose normal temperature is about 36, 78 degrees C is very hot. If the ambient temperature were 78 we should soon die. However, compared to boiling water, 100 degrees C, it's considerably cooler, and would have a significant effect on cooking times compared to boiling. 78 degrees C is 172.4 degrees F.

What are some experiments that the reaction rate is increased by increasing the temperature?

  1. Investigating the reaction of iron with oxygen to form iron oxide (rust) at higher temperatures will increase the rate of this reaction.
  2. Observing the decomposition of hydrogen peroxide to produce oxygen and water will result in faster reaction rates at higher temperatures.
  3. Studying the reaction between citric acid and sodium bicarbonate to produce carbon dioxide gas will exhibit increased reaction rates with temperature increases.

What temperature scale named after its inventor that goes 0 to 100 degrees?

The temperature scale named after its inventor that goes from 0 to 100 degrees is the Celsius scale, named after the Swedish astronomer Anders Celsius.