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# Zeroth law of thermodynamics

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• You my friend, are incredible at teaching physics. Thanks to you, I have made it this far, haha!
• Is it possible for a cooler object(lower temperature) to have higher amount of heat energy than a warmer object? Will heat still flow from the warmer object to cooler object in this case?
• No, because heat is the average kinetic energy of a material. If an object had a higher amount of heat energy, it would be at a higher temperature. That's just how temperature is defined.
Because of this, heat will always flow from the warmer (higher energy) object to the cooler (lower energy) object.
(1 vote)
• Its kind of maths like when A = B & A also = C then B = C .
(1 vote)
• A thermometer is based on the zeroth law of thermodynamics. But why?
Suppose the thermometer is at room temperature and a object is at 100 degree Celsius. When they are brought into contact, the temperature of the object would decrease and the temperature of the thermometer would increase.
Wouldn't the thermometer then show the temperature at equilibrium instead of 100 degree Celsius?
A thermometer is used to measure the temperature of a body so now isn't it measuring the temperature after attaining thermal equilibrium?
(1 vote)
• At room temperature, if I touch a ball made of iron with one hand & a wooden ball from another hand why the iron ball feels colder than the wooden one?