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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
How does a fluid-filled thermometer works?
As the temperature of a fluid increases, its volume increases, and as the temperature decreases, its volume decreases. Since the liquid in a thermometer is in a closed container, the fluid rises when the temperature increases and lowers when the temperature decreases.
Materials such as aluminum, brass, and bronze typically melt at temperatures around 1300 degrees Fahrenheit.
Do you mean, how does the pressure of water vapor at 10˚C compare with its pressure at 50˚C?
The vapor pressure of water is the pressure at which steam is saturated. Above this pressure, the water would begin to condense. In a gas mixture saturated with water vapor, the vapor pressure is equal to the partial pressure. The vapor pressure is a function of temperature. Many equations of state can predict vapor pressures of liquids but the best ones are also rather complex and require considerable expertise to use. For most purposes, there are several simpler empirical equations which can estimate the vapor pressures of liquids with sufficient accuracy for most purposes.
One of the simplest is the Antoine equation which has the form:
log10Pvap = A - B/(C+T) where the Pressure (P) is in mmHg and the Temperature (T) is in °C.
For water in the range from 1 °C to 100 °C, the constants have the values:
A = 8.07131
B = 1730.63
C = 233.426
Using these values, the vapor pressure of water can be estimated as:
Pvap(@10 °C) = 9.158817 mmHg
Pvap(@50 °C) = 92.29989 mmHg
... so the vapor pressure of water at 50 °C is roughly 10 times the vapor pressure at 10 °C.
How would it be possible that there could be high temperature but no heat transfer?
High temperature doesn't necessarily indicate heat transfer if the surrounding environment is at a similar or lower temperature. Heat transfer occurs when there is a temperature difference between objects, causing energy to move from a higher temperature object to a lower temperature one. If the surroundings are not significantly cooler, there may be high temperature but minimal heat transfer.
How do atoms behave a a temperature of -273 degrees celsius?
At -273 degrees Celsius, also known as absolute zero, atoms would stop moving entirely and exhibit minimal energy. This temperature represents the lowest possible energy state for atoms, where they would all be at rest and have no kinetic energy.
How do you change kelvin in to degrees?
To convert Kelvin to degrees Celsius, subtract 273.15 from the Kelvin temperature. There is no simple conversion to degrees Fahrenheit from Kelvin, but you can convert the Kelvin temperature to Celsius first, and then convert Celsius to Fahrenheit using the appropriate formula.
Why is your ac blowing at 65 degrees?
An AC blowing air at 65 degrees could be due to a couple of reasons. It might be set to a lower temperature on the thermostat, or there could be an issue with the thermostat itself. Additionally, the AC unit may be experiencing a refrigerant leak or a problem with its components that is causing it to produce colder air than desired.
What is the temperature to sanitize?
The recommended temperature to sanitize surfaces is typically between 165°F and 212°F (74°C-100°C). This temperature range is effective in killing bacteria and viruses. It is important to follow specific guidelines provided by regulatory agencies for appropriate sanitization practices.
How many degrees should your ac pull the room down?
It depends on the ambient temperature and the desired temperature. Subtract the desired temperature from the actual temperaturd to determine the number of degrees by which th air conditioner should cool the room.
There is nothing colder than freezing, as freezing is the temperature at which a substance changes from a liquid to a solid.
190ºF = 87.78ºC
You can use this equation to convert degrees Fahrenheit (F) to degrees Celsius (C): [°C] = ([°F] − 32) × 5⁄9
How many degrees in celsius is 450 Fahrenheit?
450 degrees Fahrenheit is equal to 232.2 degrees Celsius.
Why is absoulute zero is the theoretical lowest temperature?
Absolute zero is the theoretical lowest temperature because it is the point at which the particles that make up matter have minimal energy and motion. At this temperature (-273.15 degrees Celsius or 0 Kelvin), all thermal activity ceases, making it impossible to further lower the temperature.
What is the connection between absolute zero and the kelvin temperature scale?
The Kelvin temperature scale starts at absolute zero, which is the coldest possible temperature where particles have minimal energy and all motion stops. Absolute zero is defined as 0 Kelvin, making the Kelvin scale directly proportional to the Celsius scale but with 0 K equivalent to -273.15 °C.
What happens at negative 40 degrees?
At negative 40 degrees, both Fahrenheit and Celsius scales converge, meaning that -40°F is equivalent to -40°C. It is very cold and typically found in polar regions or high-altitude environments. At this temperature, exposed skin can freeze quickly, and it is important to take precautions to avoid frostbite.
What is the value of the temperature 15 degrees Celsius degrees kelvin?
To convert from Celsius to Kelvin, you add 273.15 to the Celsius temperature. Therefore, 15 degrees Celsius is equal to 288.15 Kelvin.
What affect will pressure have on a liquids boiling point?
Because volume is more of how much of a liquid you have, it is a physical property, changing that doesn't change it's basic chemical structure or makeup. For example let's take water the other direction, from liquid to solid, it doesn't matter if you have an ocean, or a bathtub, or a cupful of water, it's still going to freeze at 32 F. It will be more difficult to freeze or boil with higher volumes due to greater amount of water that has to be cooled or heated, but the actual amount won't change the boiling point.
What temperature is zero degrees Kelvin in centigrade?
Zero degrees Kelvin is equal to -273.15 degrees Celsius.
