Energy

This is probably a dumb question but I was wondering, does water have any kind of resistance to warming or cooling? In other words, does water heat faster than it can be cooled?

You are correct that it is a dumb, and self-contradictory, question. Your distorted syntax also reveals your basic lack of understanding.

What do you mean by " .. resistance to warming or cooling"?,and how could that be in any way equivalent to " does water heat faster than it can be cooled? ".

Heat is a word (a noun) that refers to energy in the form of the molecular motion that occurs in materials, gas, liquid, or solid. In Neutonian terms, temperature is simply a measure of the average kinetic energy (mV>2/2g) of the molecules. Heat is a measure of the total such energy involved. It is tranfrered from one object to another with which it is in direct by the direct collision of these molecules (conduction). At the atomic/quantum level energy is also radiated in the form of photons or waves in an amount proportional to the fourth power of the absolute temperature of the material (radiation). That energy also excites molecular motion, That's how your toaster works. Incident radiation at lower frequencies (radio waves) also involve photons that slowly add energy to the molecules of an object. That's how your microwave oven works.

The time required to raise or lower the temperature of any fluid, including water, is proportional to the mass of the fluid sample in question and the rate at which energy is being transferred into or from it. The relationship between the energy so transferred and the resulting change in the temperature of the fluid involved is proportional to the density of the fluid in its present state and the molecular weight of the material of which it is composed. The direction of the heat transfer (into the fluid or out of it) has no effect at all.

Your inclination to speculate and pass judgments exceeds your basic understanding by a wide margin. That is the essential characteristic of a fool. You should work on that. Try expanding your knowledge and understanding, while, at the same time better respecting the limits of your knowledge and the reach of your usually poorly formed opinions. You will learn and gain wisdom that way. Just spounting off as you do merely preserves your foolish ignorance.

A simple answer to my question would have been, water responds more readily to heat than to cold. Or vice versa. Does it take more energy to freeze water than it does to heat it might have been a way to answer it also. Instead I get insults and you spouting stuff from a 9th grade chemistry text book.

Evidently you don't read very carefully or do well with elementary textual materials about physics & thermodynamics. Given that, it is a bit odd that you are so willing to speculate about it and make nonsensical assertions about energy production and use.

There is nothing at all necessarily quicker or more efficient about heating water than there is about cooling it. Everything depends on the temperature difference between the water sample in question and the heat source warming it, or conversely, the heat sink, cooling it ( or more accurately, to which the water is transferring energy.

By the way the amount of energy (heat) required to vaporize water at a constant temperature (212 deg F at sea level) is almost 1,000 times the energy required to raise its temperature 1 deg, F. The same amount of heat is released when it condenses back from vapor(steam) to liquid water. Think about that for a while.

I liked that response better George and thanks for taking the time to reply.

http://answers.yahoo.com/question/index?qid=20120518124050AAQ9xjB
The heat of freezing of ice = -80 cal/g. The heat required to boil water is a whopping 540 cal/g.

It appears water has a resistance to heat and lesser so to cold. Sea water has a resistance to freezing...

No that's not true. The heat required to vaporize water to steam during heat addition, is exactly the same as the heat released by saturated steam (i.e. 100% steam at exactly the boiling temperature) when it is being cooled. The same equality also applies to the changes of phase from water to ice and back to water. There is no directional (i.e. heating or cooling) bias at all.

There is however the matter of entropy and increasing disorder accompanying any change of state of any material. Some energy is lost to the environment in any real process (think of it as friction), and, as a result, reversing any process, whether heating or cooling, requires a bit nore energy that that required in the original step. Here again there is no preference for heating or cooling. In the real world, getting back always requires a bit more energy that getting there in the first place - no matter in what temperature direction you are going.

The factor of ~7 difference in the so-called" latent heats of vaporization and fusion" has to do with the different energies involved in mutual molecular attractions in fluids compared to those in gasses; and those between those in fluids and the attracrtive forces involved in the chrystaline structure of ice. In the first case the energy differences are much larger. However, both are very large compared to the "speific heats" involved (i.e the energy rtequired to change the temperature of water (in any of its phases) one degree F or C.)

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