answersLogoWhite

0

🎒

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 substance is the Fahrenheit scale based on?

The Fahrenheit scale is based on the freezing point and boiling point of water. Specifically, the Fahrenheit scale uses 32°F as the freezing point of water and 212°F as the boiling point of water under standard atmospheric pressure.

How could you modify a experimental thermometer to read actual temperature?

To modify an experimental thermometer to read actual temperature, you would need to calibrate it against a known accurate reference thermometer. Compare the readings between the two thermometers at various temperatures and make necessary adjustments to ensure the experimental thermometer provides accurate readings. Recalibrate periodically to maintain accuracy.

What temperature causes enzyme reactiion Celsius?

Enzyme reactions typically occur maximally at temperatures between 37-40 degrees Celsius (98.6-104 degrees Fahrenheit) for human enzymes. However, this can vary depending on the specific enzyme and organism involved. Outside this range, enzymes can become denatured, losing their function.

What state of matter is ethanol at 100 degrees celsius?

Ethanol is a liquid at 100 degrees Celsius. It boils at 78.4 degrees Celsius, so at 100 degrees Celsius it would be in a gaseous state if it were heated beyond its boiling point.

What is the highest temperature during the day?

The highest temperature during the day can vary depending on location, weather conditions, and time of year. In general, the highest temperature is usually reached in the afternoon when solar radiation is at its peak.

Why it is necessary to raise the temperature of some fuel oils?

Some fuel oils are too viscous to flow easily to the burner unless heated first.

The bunker grade fuel oil used in many ships is close to the viscosity of warm sticky asphalt when at room temperature and is usually heated to several hundred Fahrenheit to get it to flow and then it is aerosolized in the burner with a jet of live steam.

What will be state of sodium chloride at 100 degrees celsius?

At 100 degrees Celsius, sodium chloride will still exist as a solid. It will not melt until it reaches its melting point of 801 degrees Celsius.

What physical state is ethanol at minus 50 degrees Celsius?

Ethanol is in a solid state (frozen) at -50 degrees Celsius.

Why increasing temperature from 3degrees C to 6 degrees does not double temperature?

The increase from 3 degrees Celsius to 6 degrees Celsius represents an increase of 3 degrees, not doubling the temperature. Doubling the temperature would require an increase from 3 degrees Celsius to 6 degrees Celsius.

Why is melting point of pure water 44 degree celsius?

The melting point of pure water is actually 0 degrees Celsius. At this temperature, water transitions from a solid (ice) to a liquid state. The value you mentioned (44 degrees Celsius) seems to be incorrect.

What is the final temperature of 25.0 grams of water at 22.0 degrees Celsius after it absorbs 459 joules of heat?

To calculate the final temperature, you need to use the formula: q = mcΔT, where q is the heat energy, m is the mass, c is the specific heat capacity of water, and ΔT is the change in temperature. Rearrange the formula to solve for the final temperature Tf: Tf = (q / (m*c)) + Ti, where Ti is the initial temperature. Plug in the values and calculate the final temperature.

Is 303 degrees Kelvin warmer than 77 degrees Fahrenheit?

Yes, 303 Kelvin is equal to a temperature of 85.73 degrees Fahrenheit.

Convert 115 degrees kelvin to Celsius?

The answer is -158.15 C (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 K to C, subtract 273.15 from K.

A substance has a melting point of 14c and a boiling point of 78c in what state is the substance at 78c?

The substance would be in a liquid and gas state, this would be due to vaporization that is happening during boiling.

How many joules of heat required to raise the temperature of 25 grams of h2o from 21 degrees Celsius to 35.5 degrees?

The specific heat capacity of water is 4.184 J/g°C. The change in temperature is 35.5°C - 21°C = 14.5°C. Using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature, you can calculate that the heat required is approximately 1554.7 joules.

How does change in temperature in degree Celsius relate to change in temperature in degree kelvin?

A change in temperature in degrees Celsius is equivalent to the same change in temperature in Kelvin, as both scales have the same size for a degree. The only difference is that the Kelvin scale starts at absolute zero (0 K), while Celsius starts at the freezing point of water (0°C).

When the temperature increases the particles of the liquid inside a thermometer begin to move faster and what else?

When the temperature increases, the particles of the liquid inside a thermometer also expand due to thermal expansion, causing the liquid to rise in the narrow tube of the thermometer. This increase in volume of the liquid is what is typically measured as an increase in temperature on the thermometer scale.

Is -4 Fahrenheit hot or cold?

-4 Fahrenheit is considered to be cold. In fact, it is well below freezing point (32 Fahrenheit), so it is very cold.

15 degrees Celsius in Fahrenheit?

Conversion from Celsius to Fahrenheit is done in three steps:

1. Multiply value in degrees Celsius by 9.

2. Divide result of step 1 by 5.

3. Add 32 to result of step 2.

Conversion formula: [°F] = [°C] * 9 / 5 + 32 = 15 * 9 / 5 + 32 = 59 °F

How many F are there between the 0c mark and the 100 C mark?

There are 180 degrees Fahrenheit between 0°C and 100°C.

What is 145 degrees Fahrenheit converted to Celsius?

Conversion from Celsius to Fahrenheit is done in three steps:

1. Multiply value in degrees Celsius by 9.

2. Divide result of step 1 by 5.

3. Add 32 to result of step 2.

Conversion formula: [°F] = [°C] * 9 / 5 + 32 = 145 * 9 / 5 + 32 = 293 °F

What is 27 degrees Fahrenheit in degrees Celsius?

To convert from degrees Fahrenheit to degrees Celsius, subtract 32, multiply by 5, and divide by 9. In this instance, 27 degrees Fahrenheit is equal to 27 - 32 = -5 x 5 = -25 / 9 = -2.7 recurring.

Therefore, 27 degrees Fahrenheit = -2.7 recurring degrees Celsius.

Why does boiling water temperature remain constant at 100 degree Celsius till all the water vaporized?

The boiling point of water is the temperature at which the vapor pressure of water is equal to the atmospheric pressure. As long as there is liquid water present, the temperature will remain at the boiling point (100 degrees Celsius at sea level), because the energy is being used to convert the liquid water into vapor rather than increasing the temperature.

Does the temperature have to be in Kelvin for the Arrhenius equation?

Yes, the temperature in the Arrhenius equation must be in Kelvin. Temperature in Kelvin is required to ensure that the relationship between temperature and reaction rate constant is accurately represented.