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Entropy means disorderness in interatomic state. When heat is given, temp. rises and entropy increase as mobility in inner part increase. But when we cool down substance, entropy decrease as mobility slow down.
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Does entropy increase or decrease due to friction?
Entropy is a measure of disorder. Heat is a very low order form of energy. Friction produces heat energy and hence entropy tends to increase due to friction.
When heat flows from one substance to another what happens to the temperature of the substance receiving the heat?
If heat leaves a substance, it becomes colder (temperature falls) and when heat enters it becomes warmer (temperature climbs). Note that, because of entropy, heat will only go from warm to cold things.
How does thermal energy of an object relate to its mass?
Whatever temperature you want the mass to have, the more mass there is, the more heat energy you'll have to pump into it in order to raise it to that temperature. Or the more heat energy you'll have to pump out of it in order to cool it to that temperature.
Entropy increases when heat is added because the particles do what?
Entropy always increases.It is sometimes stated that an increase in entropy means an increase in disorder - though that is not a very accurate description.
Can you decrease the entropy if yes then how and if not then why?
You cannot reduce entropy because entropy increases (Second Law of Thermodynamics), if you could, we could have perpetual motion. When work is achieved energy is lost to heat. The only way to decrease the entropy of a system is to increase the entropy of another system.
What is heat death how you can relate this term to entropy?
Heat death is a hypothetical situation in which there is no more usable energy in the Universe. In relation to entropy, it means that entropy is at its maximum - it can't increase any more.
Why entropy and temperature has inverse relation explain?
entropy is the measure of disorder in a system having direct relation with heat because it tells about the availability of heat more heat require to do useful work more is the entropy and having inverse relation with temperature because temperature tells the measure of agitation in an atoms of system that entropy is going to be measured.
What happens to entropy when pressure decreases?
When pressure decreases, entropy increases. Increases in entropy correspond to pressure decreases and other irreversible changes in a system. Entropy determines that thermal energy always flows spontaneously from regions of higher temperature to regions of lower temperature, in the form of heat.
How does specific heat of a substance relate to temperature change?
A substance with a high specific heat will easily change temperature.
How does the specific heat of a substance relate to temperature change?
A substance with a high specific heat will easily change temperature.
Why is entropy of saturated liquid lower than saturated vapor for any pure substance?
Because to perform the change of state from the saturated liquid to saturated vapor ( at constant presure ) you have to add heat in the amount of the substance's evaporation latent heat Qev . At constant pressure, temperature will stay fixed at its saturation temperature and the increase in entropy will be (delta S)ev = Qev/Tsat where (delta S)ev is the entropy increment. Tsat is the saturation absolute temperature of the substance. And so the saturated vapor entropy is (delta S)ev larger than the saturated liquid entropy.
How would you describe the change in the arrangement of particles as heat energy and temperature increase?
When heat is added, the arrangement of the particle (the Entropy of the system) will become more disorganized and Entropy will increase. When heat is taken away, the arrangement of the particles will become more organized and Entropy will decrease.
What reaction would have an increased entropy?
At high temperature the entropy increase.
How do you use steam tables?
The steam tables have 16 columns as follows: pressure (absolute), temperature, specific volume of vapor, specific volume of liquid, heat of the liquid, heat of vaporization, total heat of the vapor, entropy of the liquid, entropy of vaporization, entropy of the vapor, internal heat of the liquid, internal heat of vaporization, and internal heat of the vapor (occasionally the external heat of the liquid, vaporization and vapor are included) If the temperature and pressure of steam are known then cross referencing the heat or the volume of a known quantity of the steam can be done. the heat content(enthalpy) of the liquid or vapor can be extrapolated from the chart, as can the entropy and internal energy. The enthalpy less the internal energy = the external energy (or the actual energy required to expand the liquid to a vapor) By determining the starting heat content of steam and final or exhaust heat content of steam the efficiency of a steam engine can be determined. Along with these calculations are the determinations of heat losses, steam quality, loss to entropy,...etc. all calculated using various instruments and the steam tables.
How can you decrease the entropy of static body?
You can decrease the entropy of a static body by reducing the temperature.
Will the entropy of boiled egg increases or decreases?
As temperature increases, entropy increases. So a boiling egg has already absorbed a pretty good amount ofhigh temperature due to which it's entropy increases.
How do you use thermodynamics steam tables?
The steam tables have 16 columns as follows: pressure (absolute), temperature, specific volume of vapor, specific volume of liquid, heat of the liquid, heat of vaporization, total heat of the vapor, entropy of the liquid, entropy of vaporization, entropy of the vapor, internal heat of the liquid, internal heat of vaporization, and internal heat of the vapor (occasionally the external heat of the liquid, vaporization and vapor are included) If the temperature and pressure of steam are known then cross referencing the heat or the volume of a known quantity of the steam can be done. the heat content(enthalpy) of the liquid or vapor can be extrapolated from the chart, as can the entropy and internal energy. The enthalpy less the internal energy = the external energy (or the actual energy required to expand the liquid to a vapor) By determining the starting heat content of steam and final or exhaust heat content of steam the efficiency of a steam engine can be determined. Along with these calculations are the determinations of heat losses, steam quality, loss to entropy,...etc. all calculated using various instruments and the steam tables.
