Tea with milk or Tea without milk cools faster?

Why people can walk on hot coals without scalding their feet?

wat is e difference between temp and heat?

Tea with milk or Tea without milk cools faster?

I would think that tea without milk would cool faster because fats tend to be good insulators.

Why people can walk on hot coals without scalding their feet?

2 things, one is the type of wood used. Some woods tend to burn at a lower overall temperature. Another thing is a hell of a lot of nerve or speed. I ran across coals once. My uncle was talkin about it. I forget what kind of wood he said to use. He also told me part of it is scar tissue and just shear nerve. We decided to try it out and after burning the coals down, spreading them out, and then letting it cool for several minutes I ran across some coals. It was kind of hot.

wat is e difference between temp and heat?

Assuming 'e' is the, a teacher once told me to think about temperature as a measure of the amount of heat something has. Somebody here probably has a more scientific answer. Mine is just a generalization.

Tea with milk or Tea without milk cools faster?

You must define border conditions. Hot tea with milk cools faster then warm tea without milk. Hot tea with milk cools faster then warm tea without milk.

Cooling speed (understood as speed of loosing heat) is directly proportional to the temperature difference between object and its surroundings. Then it depends on the heat conducting properties of the object - how fast the heat from inside can be transferred to the surface. In case of tea with or without milk differences are too small to be easily observed.

However, this question is usually asked in form "I have prepared a cup of tea, but I will be able to drink it in 10 minutes, once I will finish a phone call. If I want my tea to be as hot as possible, should I add milk now, or after ten minutes." And in this case answer is obvious.

wat is e difference between temp and heat?

Temperature is a property of matter, heat is a form of energy.

Heat and Temperature. This is a tricky one for me to picture. So I think we agree that temperature is a measure of thermal or kinetic energy, so the more the molecules are moving around the higher the temperature (right?).

Now, bakegaku, you say that heat is the transfer of thermal energy and temperature is the measure of thermal energy, so what I don't understand is when a phase change occurs (water to steam) for example there is a transfer of energy (does it have to be thermal?) but no increase in temperature. So how can there be a transfer of themal energy but now measured increase in thermal energy?

So is heat simply the transfer of thermal energy? Or can something contain heat? I know if you "heat" a beaker of water you are transfering thermal energy to it, or increasing the kinetic energy of its molecules. Surely the total amount of "energy" contained in a beaker of water is more than just its thermal energy?

This makes my brain hurt, so can someone please elaborate, bakegaku maybe you can tell me more details?

So latent heat is the transfer of thermal energy with no change in temperature? I am still not convinced that heat is simply the transfer of thermal energy.

Good for you. Heat is not a process (transfer) involving energy but the energy itself.

Temperature is a property of matter. It can be defined either as Boltzmann did (connecting it with a mean kinetic energy of particles) or in a fenomenological way - if you connect two bodies and there is no heat transfer bewteen them - they have the same temperature. If there is an energy transfer - body that looses heat is hotter then receiver.

Yes, good this is what I thought. Thanks

So you can add heat to a substance and may or may not increase its temperature. This is when a substance has a change of state, for example.

Yes, good this is what I thought. Thanks

So you can add heat to a substance and may or may not increase its temperature. This is when a substance has a change of state, for example.

Exactly!  You can add or subtract heat from a substance, but you can't add or subtract temperature.  Temperature is a measurement of heat.

Ok here's one:

Does cold water or hot water reach boiling point sooner?

Also, which one will freeze faster?