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Why low temperature physics is important?
there are alot of applications of low temperature physics.in our daily life it is used in MRI,SQUIDs etc
If your body temperature is low how will the enzymes work?
Enzymes require certain temperatures to function. They become denatured if the temperature is too high or too low. If an enzyme is denatured, it can no longer function. Therefore, if your body temperature is too low, the enzymes will become denatured and cease to function. The process of denaturation is on a continuum, however. If the temperature is slightly lower than normal, but not too low, the enzymes will still function, but at a lower rate.
If the temperature is low?
If the temperature is low , the air will feel cold.
What is the function of low-temperature?
in the sence of chemistry many reaction occured at the low temperature....dis is main advantage of low temprature
In low temperature which factors favor a forward reaction?
At a low temperature, which of these factors favors a forward reaction
How is ammonia liquified?
Ammonia is made by haber process. We can turn it to liquid by high pressure and low temperature.
High yield on the haber process?
Yield in the Haber process can be maximised by using low temperatures (as the synthesis of ammonia is endothermic) and high pressures (as it promotes the forward reaction as more moles of gas are on the reactants side). However, low temperatures mean a slow reaction rate so compromised temperatures of 300 degrees celsius must be used.
What is the best conditions for the haber process?
for maximum yield- low temperatures and high pressure, for maximum rate - high temperatures, high pressure and a catalyst.
What is used for keeping substances at low or high temperatures?
a refrigerator for low temperature and a micro-wave for high temperature.
What is the effect of equilibrium on the Haber Bosch process?
The temperature of the reaction affects two things in the synthesis of ammonia: the reaction rate and the equilibrium constant.At room temperature, the reaction does not proceed at a reasonable rate. This is because the activation energy (the energy barrier that the reactants must pass over to go to products) is quite high. By increasing the temperature, the rate of the reaction is greatly increased. Therefore, in this respect, raising the temperature is a great benefit.However, the reaction is exothermic, and so increasing the temperature affects the equilibrium of the reaction. As more heat is added, the reaction equilibrium is shifted back towards the products. This reduces the efficiency of the reaction. So from this perspective, a higher temperature is strictly a bad thing!To use the process industrially, these two factors must be balanced. The temperature must be maintained high enough so that the reaction proceeds at a fast enough rate, but kept low enough to keep the reaction yield as high as possible. The use of catalysts also helps with this problem by effectively lowering the activation energy and reducing the need for high temperatures to keep the reaction rate high.See the Web Links to the left for more information about the effect of temperature and pressure on the Haber Bosch process.(This is one of the most important chemical processes in the world! Approximately 1% of all of the world's energy goes into make ammonia through this process! That is A LOT of energy!!!)so,how to calculate the rate of reaction for haber process? do we need data from experiment? As we know, rate = k[A][B] usually not depend on stoichiometry right? so how we know the form of equation of rate looks like?
How does pressure affect the haber?
The Haber process is a method of making ammonia from Hydrogen and Nitrogen N2 (g) + 3 H2 (g) 2 NH3 (g) An increase in pressure will disturb the system from equilibrium and the system will attempt to recover from this by counteracting the increase in pressure. To counteract the increase in pressure the system will favour the process that gives the least number of molecules (thus lowering pressure). as we can see above we have 4 moles of reactants for 2 moles of products in the equation. This means that an increase in pressure will cause an increase in the yield of ammonia. This reaction is also exothermic, so it would be correct to assume from a purely theoretical viewpoint that low temperature and high pressure would be best for this reaction. However the catalyst that is used in this reaction needs a temperature of around 450 degrees celsius to work, which is why this reaction is carried out at high temperature.
Difference between Diffusion and ion implantation?
diffusion is high temperature process while ion implantation is low temperature process
What can change liquids to gas?
we can change solid to liquid by the process of liquification at high pressure and low temperature.liquid is changed into gas by the process of vaporization at high temperature and low pressure
Why low temperature physics is important?
there are alot of applications of low temperature physics.in our daily life it is used in MRI,SQUIDs etc
What is the principle of liquation?
Liquation is the process of using controlled heat to separate a metal that melts at a relatively low temperature from a metal that melts at a higher temperature.
What are the two temperature scales in general and when they are in use?
1. Celsius and Kelvin scale are used for all low & high temperature readings. 2.Fahrenheit is mostly used for low temperatures in clinical thermometers or a little lower or higher temperature readings
Why evaporation is low in refrigerator?
It is because the air in the refrigerator's temperature is very low ,thus, the evaporation process is slowed down
