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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
The F-22 Raptor uses JP-8 fuel (JET A-1) for its engines. The F-134 refrigerant is used in automotive air conditioning systems, known as R-134a, as a replacement for chlorofluorocarbons (CFCs) that deplete the ozone layer.
Why do some people use Fahrenheit and others use Celsius?
Most scientific and industrial processes now use Celsius instead of the traditional Fahrenheit scale, and Fahrenheit is only used primarily in three areas :
- Atmospheric temperatures as publicly announced (Celsius equivalents when in written forms)
- Baking and cooking temperatures (to avoid confusion with older publications and users)
- Body temperatures for medical uses (again, to conform to older information sources)
The USA is very resistant to metrication.
The Fahrenheit scale was the primary temperature standard for climatic, industrial and medical purposes in most English-speaking countries until the 1960s. In the late 1960's and 1970's, the Celsius (formerly centigrade) scale was adopted by most of these countries as part of the standardizing process called metrication. Only in the United States and a few other countries does the Fahrenheit system continue to be used, and only for non-scientific use. Most other countries have adopted Celsius as the primary scale in all use, although Fahrenheit continues to be the scale of preference for a minority of people in the UK, particularly when referring to summer temperatures. Most Britons are conversant with both Celsius and Fahrenheit. Resistance to the Celsius system was partly due to the larger size of each degree Celsius, resulting in the need for fractions, where integral Fahrenheit degrees were adequate for much technical work. The lower zero point in the Fahrenheit system reduced the number of negative signs when measurements such as weather data were averaged
What is the normal room temperature in Fahrenheit and Kelvin?
Room temperature = 20 degrees centigrades= 32 + 20 x 1.8 F = 68 degrees Fahrenheit
= 20 + 273.15 Kelvin = 293.14 K
The temperature in the clouds must be below freezing. If it is below freezing (32 Fahrenheit, 0 Celsius) all the way to the ground, snow will fall. If not, it will melt and reach the ground as rain, freezing rain, or sleet, depending on if it has time to refreeze. Snow can even fall if the temperature at the surface is a little above freezing if it doesn't have time to melt as it falls.
True or False- The freezing point of a substance is equal to the melting point of a substance?
True. The freezing point of a substance is the temperature at which it changes from a liquid phase to a solid phase, while the melting point is the temperature at which it changes from a solid phase to a liquid phase. In equilibrium, the freezing point and melting point of a substance are the same.
How much energy is required to heat 20mL of water from roon temperature to 40 degrees?
The specific heat capacity of water is 4.18 J/g°C. To calculate the energy required:
- Determine the mass of water: 20mL of water is 20g.
- Calculate the temperature change: 40°C - 20°C = 20°C.
- Use the formula Q = m * c * ∆T to find the energy needed, where Q is the energy, m is the mass, c is the specific heat capacity, and ∆T is the temperature change. Substituting in the values, Q = 20g * 4.18 J/g°C * 20°C = 1672 J.
Therefore, 1672 Joules of energy is required to heat 20mL of water from room temperature to 40 degrees.
-22 degrees f converted to Celsius?
Use this equation to convert degrees Fahrenheit (ºF) to degrees Celsius/Centigrade (ºC): [°C] = ([°F] − 32) × 5⁄9
What is the equation for kelvin and Celsius?
Celsius to Kelvin: K = °C + 273.15 Kelvin to Celsius: °C = K - 273.15
Is 0 degrees Celsius a freezing point if the water has a melting point?
Yes, 0 degrees Celsius is the freezing point of water. At this temperature, liquid water changes to ice through the process of freezing. The melting point, where ice changes to liquid water, is also at 0 degrees Celsius.
Iron melts at what temurature?
Iron melts at 2750 degrees Fahrenheit which is equivalent to 1510 degrees Celsius.
What is the state of water at -35 degree Celsius?
At -35 degrees Celsius, water would be in a solid state, as it would be frozen and turned into ice.
How many degrees cooler on the Fahrenheit scale would the water have to be in order to freeze?
Water freezes at 32 degrees Fahrenheit, so the water would have to be 32 degrees cooler on the Fahrenheit scale in order to freeze.
What does degrees Fahrenheit mean?
Temperature in the United States and its territories is measured by degrees on the Fahrenheit scale.
What is -125 degrees Celsius in Fahrenheit?
To convert from C to F, multiply the C temperature by 9/5 and then add 32: -125oC = (9/5 x -125) + 32 = -225 + 32 = -257oF
-193 F
What is minus 16.7 degrees Celsius in Fahrenheit?
Celsius*1.8+32=Fahrenheit.
Therefore 16.7*1.8+32=62.06.
62.06 degrees Fahrenheit.
What is the freezing point of snot?
The freezing point of snot, which is mainly composed of water and mucus, is the same as the freezing point of water, which is 32 degrees Fahrenheit (0 degrees Celsius).
In thermodynamics, absolute zero is the temperature, (denoted by 0 Kelvin = -273.15 deg C), when all thermodynamic activity ceases.
The molecules of all bodies are in constant state of vibration. Heating a body is simply adding energy to the body so that its molecules vibrate more rapidly. Absolute zero is the point at which such vibrations cease but it is a temperature that cannot be attained with normal matter.
In January 2013, though, a researcher at the University of Munich announced that they had attained temperatures below absolute zero.
Why does CO2 sublime at -72 degrees C while SiO2 has a melting point of 1713 degrees C?
The difference in melting points between CO2 and SiO2 can be attributed to their molecular structures. CO2 exists as discrete molecules, so sublimation occurs at lower temperatures as the weak van der Waals forces between molecules are overcome. In contrast, SiO2 has a network covalent structure, where each silicon atom is bonded to four oxygen atoms, creating a strong network that requires higher temperatures to break apart and melt.
At what temperature does water freeze and turn into ice?
Water freezes and turns into ice at 0 degrees Celsius (32 degrees Fahrenheit).
Which is cooler 9 Celsius or 11 Celsius?
11 Celsius is cooler than 9 Celsius because the lower the temperature, the cooler it is.
What does 35 degrees Celsius equal in degress Fahrenheit?
35°C = 95°F
35°C multiplied by 1.8 +32 = 95°F
Can it ever snow at 60 degrees Fahrenheit?
In order for snow to occur, the ground temperature must be a temperature of 32 degrees or lower.
