why is the heat capacity of liquid waer greater than steam?
112755
It takes 580 calories per gram to convert boiling water to steam.  So, the capacity... amount of energy held... is that much greater for water.
515384
Specific heat capacity of water is high so it takes away the heat from engine better compared to other liquids. And of course its avaliable in plenty
683219
Steam is merely water vapour at a temperature equal to or greater than the boiling point. We cannot see water vapour; for the same reason, we cannot see steam.\n\nWhen water is heated in a vessel with a nozzle, a cloud forms as the hot water vapour issuing from the nozzle mixes with the colder surrounding air. Such a cloud is popularly, although incorrectly, called "steam". We cannot see steam, so what we can see is not rightly called steam. Call the cloud what you like, but just remember that it is composed of water droplets not water vapour. Like mixing cloud in meteorology, it is the mixing of moist air masses with different characteristics that yields such a cloud. If you heat the nozzle with a gas torch the cloud will soon disappear. Yet, water vapour is still issuing from the nozzle.
100519
well firstly you are using less electricity and also the steam is not polluting the atmosphere directly. apart from that there aren't really any other advantages i can think of
43501
Its a Metal, hence responds to / is a conductor of heat.\n\nIts fluid so the expansion per gradient of heat would be highest.\n\n\nAll other liquids are not a conductor of heat ( or as good as mercury)
823151
I don't really understand what your question is.  In the first place, heat always flows from a warmer object to a cooler one.  That maximizes the number of possible arrangements of energy quanta, leading to an increased entropy.
240485
It could potentially be both depending how the substance is heated [and let is not forget about radiation].\n\nIf the heating element is at the bottom, some of the heat is obviously transfered to the gas/liquid through conduction, but afterward, convection currents form to transfer heat more effectively.\nIf the heating element is at the top on the other hand, convection currents wont form quite as much and you must rely much more heavily on conduction to transfer the heat.  A similar situation occurs if you have the heating element on the side, in the middle of the gas/liquid.\n\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html
544513
They send it to cooling towers to turn the steam back into water, so they can take advantage, once again, of the mechanical energy involved in water expanding into steam.  Water expands a lot turning into steam, but when steam just turns into even hotter steam, the pressure increases, but not that much.\n\nSure they could be even more efficient by finding a good use for the extra heat, but that would be a bunch more machinery.
597803
D) It's heat of fusion is higher than its heat of vaporization.\n\nWater's heat of fusion is: 334.5 kJ/kg\nWater's heat of vaporization is: 2256 kJ/kg\n\n\nE IS NOT CORRECT BECAUSE: Water is denser than ice. If water was not denser than ice, ice would not float.\n\nAnd Mr. the_bendude, you must have never taken chemistry. Heat is not the same as temperature. Yes, water boils at 100C and freezes at 0C, but that does not mean those are the heats for which it does.
419356
I will take a stab at it.  I am guessing it is because water has more degrees of freedom.  In the liquid there is also rotational degrees of freedom to absorb energy that the solid ice does not have.\n\nTo Neil, the formulas are for heat capacity and have nothing to do with the way something is heated, only the amount of energy that it takes.\n\nNor does it have anything to do with Newton's law of cooling.
885641
Assuming that they have equal masses, it would be whichever material has the highest specific heat, because that defines how much heat energy is required to increase a unit mass of material by a unit temperature.  Water is known for having a very high specific heat, so it could be that, but you should really look up the specific heat (or "specific heat capacity") for all of these materials in your text book.
400518
the higher the temp. the more kentic energy. (particle theory as i learned it) so, the more kenitic energy, the easier it is for the particles to be seperated, and poured, thus, viscosity.
155067
The liquid molecules begin to heat up which causes them to increase their moleculer movement. They eventually move very far apart which causes them to be in the "gas" state.
495189
Yes the low steam temperature improve the condenser vacuum because the density of the steam will decries and the vacuum efficiency will increase.\nBut you will face another thing the at the low pressure turbine (LP) exit, the moisture will increase and the work of the turbine will be little down!!
383320
the idea isn't that water can't heat up when it boils at low pressure, but that it doesn't have to. no matter what temperature something is, its molecules are moving somewhat, and some of them escape as a gas. also, any gas always is condensing into a liquid or solid. when pressure and tempurature are constant, these processes reach equilibrium where they cancel each other out. at high temperature, more gasses escape, and at low pressure, less gases return to liquid. so at somewhat low temperature and relativly lower pressure, even though few gases relatively escape, even fewer return to liquid, so the net effect is that the liquid evaporates at low temperature. if the temperature were raised, it would boil even faster.
968956
It appears what you really need is the heat of vaporization.  Cp lets you calculate the amount of heat needed to raise or lower the temperature of a certain mass of liquid, but that's insignificant compared to the amount of heat gained or lost with a liquid-vapor phase change.
143805
Steam has more heat energy in it then water.\n\nDont confuse heat and temperature, they are not the same thing.\nTemperature is the measure of the average kinetic energy of the molecules of a substance.  Heat is a form of energy.\n\nIf both the steam and the liquid water are at 100 degrees C, they are both at the same temperature.  However, in order to boil water into steam, you not only must raise its temperature to 100 degree C, but also supply additional energy, called the "Latent heat of vaporization".  This extra, Latent, heat is the cause of more severe burns.\n\nWhen you want to boil water, you must supply the latent heat, but when water condenses, it gives that energy up.\nAs the steam consense, your body absorbs that latent heat, but then it also absorbs energy from the 100 degree water that just formed.