If you rise/low the tempature in a room would it still be room temapture?
610861
If you raise or lower the temperature in a room, it will take a certain time for the heat to travel throughout the room. The room temperature maybe defined as the average temperature in the room at a particular time but not a specific temperature. After a certain time it will reach a peak but may not stay at that peak depending on the loss of heat from the room, which are hampered by factors like an open window, wooden or concrete walls, etc. Thus it won't be the room temperature but just an average temperature.
329507
I imagine what you mean is that, if temperature goes from higher to lower the "delta T", or change in temperature, is negative. If it goes from lower to higher, the "delta T" is positive
417291
Once the rising air depletes whatever inertia it had from rising through air resistance, it basically stops rising.\n\nNote that if it was rising, it was likely because it was less dense than the surrounding atmosphere in the first place.  This is likely because it was warmer than the surrounding atmosphere (warmer air is less dense than cooler air).  \n\nSo what densifies this warmer, less dense air?  Well, it eventually loses its heat energy to the surrounding air, making it roughly the same temperature, which also makes it roughly the same density.
770615
It's because when air gets hot it expands, and when it gets cold it contracts.  The cold air coming from the air conditioner is denser than the air that's already in the house, so it tends to sink.  If the AC vent were in the floor, the air higher up would never get cold, but with the vent in the ceiling, the cold air falls through the room and cools everything.  In the same manner, hot air rises, so having the vents in the floor makes the hot air float through the room instead of just staying on the ceiling and leaving the floor cold.
872492
You are mistaken.\n\nThe shifting of breath has nothing to do with temprature.\n\nIts absolute normal.Don't worry about that.
1166636
Actually, there is an easy way to approximate your answer. A closet should reach steady-state equilibrium before the end of the day - that is, the heat added by the bulb would equal the heat lost by conduction through the ceiling, walls, etc. Once steady-state equilibrium is reached, it doesn't matter what the heat capacity of the air or the closet is - only the thermal conductivity of the walls, door, etc. and the surface area of each will be important.\n\nHere is where effective "R-value" of the walls, ceiling, door, floor is useful. R-value is just the rate of heat transfer in units of K-m^2/Watt (or in British units ft^2 F/(BTU/hr)). The metric "R-value" is about 1/6 of the corresponding R-value in British units due to the conversion factors.\n\nThe formula for difference in heat at steady state (i.e., heat rise) would be approximately:\n\nDelta-T = 100 Watts / (R1A1 + R2A2 + R3A3 + R4A4 + R5A5 + R6A6) where each of the 6 surfaces of the room are treated separately. \n\nYou need to know approximately what your insulation is for each surface - but a little research on the internet and comparison based on your closet's insulating properties should get you a halfway decent approximation.
48882
Hot air rises.\n\nThe tiles are on the floor. Ceramics can conduct and retain heat, but not so easily when that heat isn't being piped straight through them.
465334
Its like your Christmas Tree. You don't want a big tree in a small room and you don't want a little tree in a big room. Most trees and most rooms are pretty much the same size.
933542
No.  But it's wavelength decreases.\n\n\nDoug
587432
Colder air is "thicker," moves much more slowly than does hot air, and is heavier than warmer air...Air will set up a gradient from the coldest at the bottom to the hottest at the top in a container...
195804
Put in room tempature. Not cold enough that it will keep. Not hot that it will cook.
1164989
The energy from the light is absorbed into the walls, etc.  If you could create a room that had everything in it 100% reflective, then the light would continue to exist.  But, you wouldn't know this, because you are not 100% reflective, and you would absorb the light.
24312
Depends on temp and pressure, but at room temp, avg. pressure, helium's a gas
1009034
No.\nThe computer works better when it is warm.\nIt's a hardware thing.
1106901
Yes, also called ambient temperature.
139400
the air gets thinner as you rise in elevation.  the thin mountain air doesn't trap the heat as well as the thick air near sea level does.
320649
Even in close rooms there is air convection, that is, warm air moves naturally from the floor to the ceiling. You may not feel it (it's a tiny flow), but it's there. Don't be scared, it's a natural thing, no ghost is involved.