How to find temperature and time

  • Thread starter Thread starter newmember1
  • Start date Start date
  • Tags Tags
    Temperature Time
Click For Summary
The discussion revolves around a question regarding Newton's law of cooling, specifically how to derive the final equation for the cooling of a hot body in air. The scenario involves a body cooling from 60 degrees to 50 degrees in 3 minutes, with the air temperature at 18 degrees. The main inquiries are about the time it will take for the body to cool to 30 degrees and its temperature after 10 minutes. Participants are encouraged to provide guidance on the derivation and calculations involved. The conversation emphasizes the application of Newton's law of cooling to solve the problem.
newmember1
Messages
1
Reaction score
0
hi, i have question here i want to know the complete final equation through proper derivation and answers. can anyone guide me?? here is question:

the rate of cooling of hot body in air is very nearly proportional to the difference b/w the temperature of body n the temperature of air.if the TEMP OF AIR IS 18 degree and body intitially is at 60 degree is found to have cooled to 50 degree after 3 minz how long will it be before it cools to 30 degree?? and what will the temperature after 10 minz??

Any kind of help will be appreciated.

Regards,
Aina
 
Science news on Phys.org
Try searching on 'Newton's law of cooling' .
 
Thread 'Can somebody explain this: Planck's Law in action'

Thread 'Can somebody explain this: Planck's Law in action'

Plotted is the Irradiance over Wavelength. Please check for logarithmic scaling. As you can see, there are 4 curves. Blue AM 0 as measured yellow Planck for 5777 K green Planck for, 5777 K after free space expansion red Planck for 1.000.000 K To me the idea of a gamma-Ray-source on earth, below the magnetic field, which protects life on earth from solar radiation, in an intensity, which is way way way outer hand, makes no sense to me. If they really get these high temperatures realized in...
View full post »

Similar threads

How Does Temperature Affect Sound Wave Velocity in Air?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Time for a cold volume of air to reach a higher air temperature
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Estimating a thermal equilibrium on a custom made fridge
  • · Replies 23 ·
Replies
23
Views
2K
Undergrad How to calculate the mass of gas in a tank?
  • · Replies 109 ·
4
Replies
109
Views
8K
Graduate Calculating the heat loss of an open water tank (aquarium)
  • · Replies 2 ·
Replies
2
Views
3K
Temperature prediction of a material
  • · Replies 3 ·
Replies
3
Views
1K
Energy consumption for cooling and average temperature
  • · Replies 3 ·
Replies
3
Views
1K
How do I measure the temperature of my infrared sauna?
  • · Replies 15 ·
Replies
15
Views
10K
Decompression of dry air in relation to temperature
  • · Replies 3 ·
Replies
3
Views
2K
Thermo: Calculating the temperature drop from gas leaving a system
  • · Replies 11 ·
Replies
11
Views
9K