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2006-12-17 14:56:27 · 5 answers · asked by Curious George 1 in Science & Mathematics Physics

I read that as any objects approaches the speed of light, it will get more massive. So if an object's temperature gets so high so that the average kinetic temperature of the particles started approaching the speed of light, would they start to gain mass?

2006-12-17 15:05:47 · update #1

5 answers

Yes...the mass of the hotter item would have a higher average velocity than the colder item.

2006-12-17 15:00:15 · answer #1 · answered by feanor 7 · 0 0

heating objects will cause them to move faster which according to relativity makes them more massive. But to see any significant gain in mass you have to get close to the speed of light. The closer you get to the speed of light the more and more energy it takes to go faster. This is what keeps you from reaching the speed of light. Kind of a catch 22. Heating something to common temperatures, even thousands of degrees, goes not get them anywhere near the speed of light.

2006-12-17 23:55:14 · answer #2 · answered by ZeedoT 3 · 0 0

law of conservation of mass, cooling and heating are physical changes to which no atoms are lost and threfore mass remains constant.But say pottasium is reacted with chlorine to produce potassium chloride then atoms have merged together and the mass of the resulting compound is greater, this is a chemical change resulting in transfer of atoms, but no transfer of atoms occurs due to temperature changes. Perhaps if you mean that water is invloved than evoporation of water occurs greater at a higher temperature from the compound and mass is reduced in this aspect whereas during colder times more water is frozen and attached to the compound so its mass changes otherwise mass remains constant because this is a mere physical change. Yes the atoms have more energy at higher temeprature and the space allocated to atomic movement is greater and atoms move faster, more kinetic energy but the mass is constant. Yes with more energy atoms have a greater chance of summing up enough activation energy for a chemical reaction and this is the only difference that is resultant with temperature.

2006-12-17 22:58:18 · answer #3 · answered by Zidane 3 · 0 1

temperature has nothing to with energy rather the speed of the molecules. Heat is thermal energy.

2006-12-17 23:00:07 · answer #4 · answered by avalentin911 2 · 0 1

yes, heat adds measurable mass to an object

2006-12-17 23:21:31 · answer #5 · answered by pechorin1 3 · 0 0

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