if two substances have differnt________, heat will flow the______object to the______.?
96040
The phrasing is wierd, shouldn't there be a from between flow and the?\n\nIf two substances have different _temperatures_, heat will flow [from] the hotter [substance] to the colder [substance].\n\nThis is because heat, at the molecular level, is related to how fast molecules are moving. When a substance whose molecules are moving faster comes in contact with an object that's moving slower, the faster molecules will collide with the slower molecules of the second object, slowing down the faster molecules while speeding up the slower ones. Thus, heat (average kinetic energy of a substance) is transferred from the hotter substance to the colder one.
683535
No. \nHeat will flow from an object that has more temperature to another with less temperature. An object having less temperature can have more thermal energy than another witj more temperature. This will depend on the mass of the object. See it this way: 1 gram of iron at 1000ºC has less energy than 1 ton of iron at 100ºC. Heat will flow from the object with less energy to the object with more energy in this case. But it will always flow from the object with more temperature.
675989
If when you mix the two together the solution turns clear, you have a solution.  If it makes a cloudy mixture, or if there is visible solid on the bottom, you have a heterogeneous mixture, or a non-uniform mixture, which is not a solution.
527991
heat transfers from warmer objects to cooler objects. your tongue is warmer so the heat flows to the cold object; your tongue loses heat and becomes colder and sticks to the object.
1136309
HEAT ENERGY=mQ(t2-t1)\n\nM-MASS OF SUBSTANCE\nQ-SPECIFIC HEAT CAPACITY\n(t2-t1)-CHANGE IN TEMP.
833244
It is one of the ways heat is transported.  The other two are conduction and convection.
925329
You must approach this question with an understanding of energy conservation. Change in Energy = mass*heat capacity*change in temperature, where heat capacity = 1.00 for pure water. By evaluating your conditions with the above definition of thermal energy, it will show that you must supply 2 calories of heat to the system.\n\nIf you were to add another substance to the original system. You would once again approach the problem using energy conservation. The energy of a hot liquid (mass1*heat capacity*change in temperature) + the energy of a cold liquid (mass2*heat capacity*change in temperature) = mass(1+2)*heat capacity*change in temperature.\n\n-Christopher
499302
melting physical\nrusting chemical\nburning chemical
1089285
Conductivity does not depend on direction of heat flow.\n\nFound a paper on thermal conductivity see Fig 3
820184
I think you should break things down and think of the question like this.\n\nThe heat for a process is 250.3J, Its doubled with the same temperrature difference, the temperature difference is 5C.
240485
It could potentially be both depending how the substance is heated [and let is not forget about radiation].\n\nIf the heating element is at the bottom, some of the heat is obviously transfered to the gas/liquid through conduction, but afterward, convection currents form to transfer heat more effectively.\nIf the heating element is at the top on the other hand, convection currents wont form quite as much and you must rely much more heavily on conduction to transfer the heat.  A similar situation occurs if you have the heating element on the side, in the middle of the gas/liquid.\n\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html
976281
Maybe you want to think along the lines of a change in energy state and a resultant heat ( gain or loss ) absorbing light in a given wavelength range.
1003847
The study of heat and how it behaves.
174163
thermodynamics?  heat transfer?  physics?
699724
fluids - convection is due to the movement of molecules
54590
A hot object either damages the balance or produces the convection currents which the mass will appear less than usual.
792038
For the forward reaction (from left to right), there is a decrease in enthalpy, which indicates it will tend to proceed as written, to products.\nThe entropy increases from left to right (products are gaseous), and this also favours the forward reaction to proceed to products.