smoove Posted December 7, 2005 Share Posted December 7, 2005 Ok, this may sound a little stupid, but I've ofen wondered about this, so here goes. Say we are in a controlled enviroment, say a room, where the temprature is kept 100% at the same level all the time, and we have a tub with both hot and cold water pouring in at the same time, rate, everything exactly the same. Both of them the exact opposite temprature to each other, so warm water is +10c and cold water is -10c? Now my question is, which would the victor? Would the watter graduly get colder or warmer? Link to comment Share on other sites More sharing options...
CoolerUK Posted December 7, 2005 Share Posted December 7, 2005 Water at -10c ? :/.... Called Ice isnt it ? Link to comment Share on other sites More sharing options...
noroom Posted December 7, 2005 Share Posted December 7, 2005 I would really like to see you pouring water that is at -10?C *edit* CoolerUK beat me to it:pp Link to comment Share on other sites More sharing options...
Evilpig Posted December 7, 2005 Share Posted December 7, 2005 Warmer. Link to comment Share on other sites More sharing options...
DaveLegg Developer Posted December 7, 2005 Developer Share Posted December 7, 2005 He means 10 degrees less than a set number, and 10 degrees more. I don't know the answer, but I imagine the temperatures would equal out if there was the same amount of both temps of water. So in answer, once mixed the hot would get colder and the cold would get hotter. Link to comment Share on other sites More sharing options...
Spyker Posted December 7, 2005 Share Posted December 7, 2005 (edited) if it were possible lets say another substance not water then the cold liquid wouuld absorb energy from the hotter liquid untill they reach thermal equilibrium which would be 0. As u said asuming no energy can be lost from the system, other than being transferd bewteen the liquid, this will hold. Edited December 7, 2005 by Spyker Link to comment Share on other sites More sharing options...
Hum Posted December 7, 2005 Share Posted December 7, 2005 :huh: Assuming the water didn't drain out, and that you kept adding heat energy to the room, the water would reach something close to room temperature. Link to comment Share on other sites More sharing options...
neowin_hipster Posted December 8, 2005 Share Posted December 8, 2005 That's a horrible question because its far too full of holes and even the "right answer" is going to be wrong. Water, ice, gas, etc. all have different "specific heat" and thermal conductivities. Constantly adding water to the system screws up the energy in this "closed system". Not to mention that the heat/cold is being added to make the room temperature constant. There's way too much else going to affect the answer. Link to comment Share on other sites More sharing options...
Draconian Guppy Posted December 8, 2005 Share Posted December 8, 2005 the further the hot or cold water get from the source and closer to each other, they would "even" themselve but only far from the source. it's called Thermal Equilibrium. In other words. #1 Hot water = the further from the pouring source and closer to the cold water will equals to the water getting colder #2 The cold water = the further from the pouring source and closer to the hot will equals to the water getting hoter So at a mid point there would be an average temperature between them Victor Rambo 1 Share Link to comment Share on other sites More sharing options...
markwolfe Veteran Posted December 8, 2005 Veteran Share Posted December 8, 2005 * moved to Science forum * Link to comment Share on other sites More sharing options...
Hitman2000 Posted December 8, 2005 Share Posted December 8, 2005 Read up on the thermodynamic equilibrium in any physics book and its states that the hotter object will always transfer heat to the colder object. Read up on the zeroth law and 1st law of thermodynamics and also fluid mechanics that should answer mostof your questions. Link to comment Share on other sites More sharing options...
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