Mercury and water are not the just substancescapable of existing in three distinctive states ofmatter. In fact, every one of the elements, of whichmercury is one, might exist in solid, liquid, or gasforms. Additionally, many substances exhibition morethan one solid form, frequently with an extremely differentproperties. For example, both graphite anddiamond room composed that carbon, yet the arrange ofcarbon atom within the solid isdifferent.

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For simplicity, take into consideration puresubstances such as water. The stable kind ofmatter, or phase, the a single component systemdepends on the temperature and pressure of thesystem. We are commonly used to atmosphericpressure. Therefore, we suppose water to it is in aliquid in ~ room temperature, to freeze to a solidbelow 32 degrees Fahrenheit (0 deg Celsius), andto boil into the gas phase above 212 deg F (100deg C). However, if you put a glass that waterinside a vacuum and also reduced the press to onetenth that the normal atmospheric pressure, thewater would boil even in a nicely air conditionedroom.

The same is true for othersubstances, back the temperatures andpressures at which a provided phase is stable may beso excessive that for all useful purposes you"llnever conference it. Because that example, the gas phase ofcopper is stable at atmospheric pressure only attemperatures over 4643 deg F (2562 deg C);however, if you want to acquire the gas phasenear room temperature, friend would have to reducethe pressure to much less than one billionth ofatmospheric pressure.

Answer 2:

This is not true; in fact all of the elementsexcept for helium go through all three phases ofmatter (solid, liquid, and gas) together the temperatureis varied. That is to say, at short enoughtemperatures, every the aspects (except Helium) aresolids. Together the temperature is increased they willmelt and become liquids. Each facet melts in ~ adifferent temperature, dubbed it"s "meltingpoint". Hydrogen melts at -259 levels Celsius.Mercury melts in ~ -39 degrees Celsius. Stole meltsat 1,535 levels Celsius. Together the temperature isincreased tho further, each facet will boiland come to be a gas. Each aspect boils in ~ adifferent temperature, dubbed the "boiling point".For Hydrogen, the boiling suggest is -253 degreesCelsius; for mercury the is 357 levels Celsius,and for iron the is 2,750 degrees Celsius.

Fromthese number you deserve to see the at room temperature(and undoubtedly for practically any temperature discovered onEarth) hydrogen is a gas, mercury is a liquid, andiron is a solid. This discussion likewise holds truefor tiny molecules, favor water (H2O),carbondioxide (CO2), etc. Water is the onlysubstancewhere all 3 states can be readily observed ineveryday life: solid water as ice, fluid water ina water fountain, and also gaseous water together steam.Carbon dioxide is a good example of a substancewhich deserve to be a liquid, yet only when it is underpressure. Because that example, in ~ room temperatureunpressurized carbon dioxide is a gas, but if itis pressurized to 800 pounds per square inch (asit often is in steel bottles), it becomes aliquid.

Helium (an element) is distinct in thatit will certainly not frozen no matter just how cold that is madeunless the is simultaneously very cold (colder than-270 degrees C) and also under a great deal the pressure(about 400 pounds every square inch). Thus you cansee that all the elements and also all the simplemolecules deserve to be made to go with all threephases if you can regulate the temperature and thepressure castle experience. It could seem that thiswould typical that any kind of substance can be made to besolid, fluid or gas, yet this is not rather true.For example wood, i m sorry is made the end of really large,complicated molecule containing largely carbon,hydrogen, oxygen, and also nitrogen, does not boil -i.e., when you heat it it does not melt intoliquid wood and then boil into gaseous wood.Instead as the lumber becomes warm (about 300 degreesCelsius), the large molecules rest up right into smallermolecules like carbon dioxide. Carbon dioxide is agas in ~ 300 degrees Celsius, so that floats away.This procedure is referred to as "burning", and is theresult the the huge molecules that the heavy woodbreaking increase into little molecules like CarbonDioxide, which then float away together a gas. If youare interested, there is a table of all themelting and also boiling point out of every the elementsat

chemicalelementsAnswer 3:

This is no true. All substances go through allthe phases, however at different temperatures andpressures. Mercury and water room both fluid atroom temperature and also 1 setting of pressure. Youcan make water boil, however, by putting it in avacuum!

Boiling is the process of a substancechanging from liquid to gas phase. You have the right to makewater do this in ~ room temperature by putting it ina hefty container and also removing every the air -putting the in zero air pressure - climate the watercomes the end of fluid phase and changes into gasphase! Substances like hydrogen, methane gas, andcarbon dioxide, i beg your pardon are discovered on earth as gases,are uncovered on the outer planets favor Saturn asices. Substances prefer iron, silicon, carbon, thatare found on earth as solids, are uncovered in the Sunas ionized gases, or plasmas!

Answer 4:

What carry out you typical by phases?. Ns presume friend meanthe solid, fluid or gas phases. If so, yourstatement is no accurate. Most facets can bemade right into one of these phases. Metals solid atroom temperature can be made right into liquids byheating and even right into gases by heating the liquidto high temperature. Also helium which is a verycold liquid in its usual state in ~ atmosphericpressure have the right to be made right into a heavy by compressingthe liquid or into a gas by heating the liquid.

I hope this is clear because that you now.

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Answer 5:

Almost every substances have actually a solid, liquid, andgas state. I think mercury is interesting because(as stated in the CRC Handbook the Chemistry andPhysics) that is the only usual metal that is aliquid at room temperature and also atmosphericpressure. Water is also really interesting, andmakes life together we know it possible, because it is aliquid in ~ room temperature and also at one atmosphere.

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