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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 a Kelvin bridge?

A Kelvin bridge is a type of electrical circuit used for measuring very low resistances precisely. It minimizes errors caused by the resistance of the connecting leads by using a Wheatstone bridge configuration with additional connections to compensate for lead resistances. This allows for accurate measurement of small resistances in applications such as precision electronics and material testing.

What substance can attain temperatures below 260 degrees celsius?

Liquid nitrogen can attain temperatures below 260 degrees Celsius. It has a boiling point of -196 degrees Celsius, making it suitable for many cryogenic applications.

Is alcohol in alcohol thermometers toxic?

Yes, the liquid inside alcohol thermometers is typically ethanol, which can be toxic if ingested in large quantities. However, the small amount of liquid in a thermometer is unlikely to cause harm if accidental exposure occurs on the skin. If swallowed, medical attention should be sought immediately.

Is 69 degrees hot?

depends whether you mean Celsius or Fahrenheit scale ;

but it could be hotter in any case.

How much would the freezing point of the water decrease if 4 mol of NaCl were added to 1 kg of water for water and i 2 for NaCl?

The freezing point depression can be calculated using the formula: ΔTf = i * Kf * m, where i is the van't Hoff factor (number of particles), Kf is the cryoscopic constant, and m is the molality of the solution. Given that i for NaCl is 2, and assuming Kf for water is 1.86 °C/kg/mol, the ΔTf for a 4 mol NaCl solution in 1 kg of water can be calculated.

What will Reduce bacteria to a safe level soap toxins water at 82 degrees Celsius or toxins?

Heating water to 82 degrees Celsius will reduce bacteria to a safe level, as this high temperature helps to kill bacteria. Soap can help to remove bacteria from surfaces, but it may not necessarily kill all bacteria present. Toxins may need specific treatments or processes to neutralize them and make them safe.

350 degrees Fahrenheit is how many Celsius?

Start by subtracting 32 from 350 .Then multiply the answer with 5 and divide by 9.

In this case the answer is 176.66 degree celsius.

What is is 98.6 degrees in Fahrenheit?

98.6 degrees Celsius is 209.48 degrees Fahrenheit.

Why is Celsius more used than Fahrenheit?

The unit Celsius is part of the SI metric system of which countries such as China, and countries that compose of Europe primarily use. The United States is the only country that uses unit Fahrenheit when referring to temperature. However, using Celsius to display the temperature of the weather or anything in particular seems much more practical because it's easier to refer to and remember. In Celsius, the freezing point of water is 0 degrees, but in Fahrenheit, it's 32 degrees.

If you have 17 moles of gas at a temperature of 340 degree Kelvin and a volume of 88.98 Liters what is the pressure of the gas?

Assuming the gas is ideal;

pV = nRT

where p = ?

V = 88.98 litres = 88.98 dm3 = 0.089 m3

n = 17 moles

T = 340 K

R= 8.31

Solving for P

P = 539.7 kPa

Convert 16 degrees Celsius to kelvin?

The answer is 289.15 K (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 C to K, add 273.15 to C.

How many watt is 180 Celsius?

Watt is a unit of power, while Celsius is a unit of temperature. The two are not directly convertible to each other. Temperature does not have a direct conversion to power (watt) without additional context or information.

How can a person have a temperature of 123 degrees?

A body temperature of 123 degrees Fahrenheit is extremely high and would likely be fatal. This level of temperature is well beyond what the human body can withstand and is not compatible with life. If someone were to have a temperature this high, immediate medical attention would be required.

When is ice always zero degrees Celsius?

Ice is always at zero degrees Celsius when it is at its freezing/melting point. At this temperature, ice absorbs or releases energy as heat to change phase from solid to liquid, or vice versa, while maintaining a constant temperature of zero degrees Celsius.

What instrument will you use to get the temperature of the water?

A thermometer is typically used to measure the temperature of water. There are different types of thermometers such as digital thermometers, and mercury or alcohol-filled thermometers, that can be used depending on the specific requirements of the situation.

Why water cannot be used as thermometric liquid?

Because of its properties. It freezes at 0 Celsius, and boils at 100 Celsius. WHen it freezes, it expands slightly - putting pressure on the vessel it's stored in. If it was used in thermometers... (a) you cold only measure a temperature range of between 5 and 95 degrees Celsius.

What is 6.8C converted to degrees?

6.8 degrees Centigrade IS degrees, degrees Centigrade.

What is the melting point of glass used as a substrate?

The melting point of the glass used as a substrate can vary depending on the specific type of glass. However, most common types of glass substrates have melting points ranging from about 600°C to 1000°C. It is important to consider the specific properties of the glass when using it as a substrate for various applications.

When the air pressure is low the freezing point of water decreases or increases?

When the air pressure is low, the freezing point of water decreases. This is because lower air pressure allows water molecules to escape more easily, reducing the need for the temperature to drop in order for freezing to occur.