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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 lower the amount of substance, the faster it reaches the boiling point. The more the amount of substance, the longer it takes to reach the boiling point. Hope that this is what you wanted to know! :)
Where does temperature fall to 125 below zero?
Temperatures below -125 degrees Fahrenheit (-87 degrees Celsius) are often recorded in Antarctica, particularly at high elevations where the air is thinner and colder. These extreme temperatures are usually found in the interior regions of the continent during the winter months.
The specific heat capacity of aluminum is 0.897 J/g°C. First we need to convert the mass to grams: 3 kg = 3000 g. Then we can use the formula: energy = mass x specific heat x change in temperature. Plugging in the values: energy = 3000 g x 0.897 J/g°C x (23°C - 18°C) = 13,485 J. So, 13,485 Joules of energy is required.
Why is methane a gas at 20 degrees Celsius?
Methane is a gas at 20 degrees Celsius because its molecular structure consists of a single carbon atom bonded to four hydrogen atoms, resulting in a low boiling point of -161.5 degrees Celsius. This allows methane to exist as a gas at room temperature.
Is it impossible to have a temperature below 0 k?
Yes, it is impossible to have a temperature below 0 Kelvin. Absolute zero at 0 K is the lowest possible temperature where particles have minimal thermal motion. Any temperature below 0 K would imply that particles have negative thermal energy, which is not physically meaningful.
What is the state of rubidium at 100 degrees Celsius?
At 100 degrees Celsius, rubidium is a solid. Its melting point is 39.3 degrees Celsius, so at 100 degrees Celsius, rubidium would be in a solid state.
What does minus 4 degrees Fahrenheit equal in degrees celsius?
Minus 4 degrees Fahrenheit is equal to approximately -20 degrees Celsius. This can be calculated using the formula: (Fahrenheit temperature - 32) x 5/9 = Celsius temperature.
Why was the Kelvin scale developed?
The Kelvin scale was developed to establish an absolute temperature measurement that doesn't have negative values. It is based on the concept of absolute zero, the theoretical point at which particles cease to move due to thermal energy. This makes the Kelvin scale ideal for scientific applications and calculations where precise temperature measurements are needed.
80 degrees Fahrenheit is a measure of temperature commonly used in the United States. It is considered a moderately warm temperature.
The two plateaus on the heating curve for water represent the phase changes from solid to liquid (melting) and from liquid to gas (boiling). During these transitions, the temperature remains constant as energy is absorbed to break intermolecular forces and change the state of water, rather than increasing the temperature.
The specific heat capacity of silver is 0.235 J/g°C. The energy required to raise the temperature of 3 g of silver by 5°C can be calculated using the formula: Energy = mass * specific heat capacity * temperature change. Plugging the values in gives: Energy = 3 g * 0.235 J/g°C * 5°C = 3.525 J.
It's 50 Celsius hotter than 100 Fahrenheit?
Yes because 50 degrees Celsius is equivalent to 122 degrees Fahrenheit
How do you change Celsius to fahrenhei jaguar?
To convert Celsius to Fahrenheit, you can use the formula: Fahrenheit = (Celsius * 9/5) + 32. Simply multiply the Celsius temperature by 9/5 and then add 32 to get the temperature in Fahrenheit.
Why does all the water in lake have to be cooled to 4c before surface water can be cooled below 4c?
Water is most dense at 4 degrees Celsius. When cooling the surface water below 4 degrees Celsius, the colder water sinks because it is denser, causing a uniform temperature to be established at 4 degrees Celsius throughout the lake before further cooling can occur. This uniformity is necessary to prevent a temperature gradient that could disrupt the natural mixing patterns of the lake.
When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, it releases 334 Joules of heat.
Is it possible to use 50 degrees Celsius as a fixed point?
Yes, you can use 50 degrees Celsius as a fixed point, but keep in mind that temperature scales are usually defined based on more universally relevant fixed points like freezing and boiling points of water. If you're defining a custom scale or specific context where 50 degrees Celsius is important, you can use it as a fixed point for your reference.
What do you call the hypothetical lowest possible temperature when all molecular motion ceases?
The hypothetical lowest possible temperature, where all molecular motion ceases, is called absolute zero. At this temperature (0 Kelvin or -273.15 degrees Celsius), particles have minimal energy and cease to move, also known as the point of zero entropy.
What is the triple point temperature?
The triple point temperature is the temperature at which a substance can exist in equilibrium as a solid, liquid, and gas simultaneously. It is unique for each substance and defined by its specific pressure conditions.
Where do they use the unit of measurement kelvin?
In laboratories working with cryogenics, superconductors or superfluids, as well as any place
where routine daily activities involve very cold equipment, such as MRI facilities and Prudhoe Bay.
What is 59degress Fahrenheit to Celsius?
59 degrees Fahrenheit is approximately 15 degrees Celsius. To convert Fahrenheit to Celsius, you can use the formula: (Fahrenheit - 32) x 5/9.
At normal room temperature of 75 degrees Fahrenheit, a storage cylinder of R500 refrigerant should be pressurized to approximately 72-75 psi in the absence of non-condensable gases. It's important to consult the specific pressure-temperature chart for R500 to ensure accurate system operation.
