- #1
BL4CKCR4Y0NS
- 62
- 0
Why is it that when you heat an object, it takes longer compared to cooling it?
Heating vs. Cooling: Why Does It Take Longer?
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SUMMARY
The discussion centers on the comparative rates of heating and cooling objects, emphasizing that cooling typically occurs faster than heating. Participants explore the principles of thermal contact and heat transfer, noting that the temperature change in a heated object is less efficient than in a cooled object due to various factors, including the surrounding environment and the properties of the materials involved. The conversation highlights the complexities of thermal dynamics in isolated systems, reinforcing that the heat lost by a hot object is equivalent to the heat gained by a cold object under ideal conditions.
PREREQUISITES- Understanding of thermal dynamics
- Knowledge of heat transfer mechanisms
- Familiarity with temperature measurement concepts
- Basic principles of thermal contact
- Research the laws of thermodynamics
- Study heat transfer methods: conduction, convection, and radiation
- Explore the concept of thermal equilibrium
- Investigate real-world applications of thermal dynamics in engineering
Students of physics, engineers, and anyone interested in understanding the principles of heat transfer and thermal dynamics in practical applications.
- #2
Dadface
- 2,489
- 105
BL4CKCR4Y0NS said:
The rate of heating/cooling depends upon the heat mechanisms operating and numerous factors related to the object itself and the surrounding it interacts with so are you sure?Perhaps you could be more specific.
- #3
BL4CKCR4Y0NS
- 62
- 0
Hmm ...
Well let's say you have two of the same objects ... if you heat one, and cool the other for 2 minutes exactly... put the temperature of the heated object in ratio to the temperature of the colder object...
The colder object is more cold in ratio than it is hot.
Well let's say you have two of the same objects ... if you heat one, and cool the other for 2 minutes exactly... put the temperature of the heated object in ratio to the temperature of the colder object...
The colder object is more cold in ratio than it is hot.
- #4
Dadface
- 2,489
- 105
BL4CKCR4Y0NS said:
Lets use your example as a thought experiment.Let the two objects have different starting temperatures but apart from that be identical in all respects.Let them be in some sort of thermal contact but completely isolated from the surroundings.If the heat lost by the hot object is gained by the cold object(in other words heating one and cooling the other)then after two minutes the temperature loss of the hot object would equal the temperature gain of the cold object.The situation in real experiments will be far more complex and the outcome depends on several variables.It can make the brain ache just to think about it
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- #5
BL4CKCR4Y0NS
- 62
- 0
Yeah, I see what you mean ...
Just typing out the hypothetical situation in my previous post took me a whole 10 minutes trying to word it correctly. >_>
Just typing out the hypothetical situation in my previous post took me a whole 10 minutes trying to word it correctly. >_>