Thermal energy of snow

  • Thread starter AlanxD
  • Start date
  • #1
32
0

Homework Statement



Assuming that the snow is -4 degrees celcius and that the water is dumped at +4 degrees celcius, calculate the amount of heat energy required to operate a metromelt for one hour.

Homework Equations



Q=mct
Q=mLf *little f*

The Attempt at a Solution



I couldn't see how i would arrive the answer but i knw the Ti=-4 degrees celcius and Tf=4 degrees celcius and melting point is 0 degrees celcius.
I want a step-by-step solution.
 
Last edited:

Answers and Replies

  • #2
32
0
Can anyone help me for this Thermal energy question?
 
  • #3
G01
Homework Helper
Gold Member
2,682
16
I want a step-by-step solution.

You haven't really shown much work. Either way, no one is going to give you a complete solution here. We'll help YOU do YOUR homework, not do it for you.

With that said, I'll try to HELP you. HINT:I think your going to need to know how much snow the metro melt melts in an hour. Do you know this, or can you find it?
 
  • #4
32
0
You haven't really shown much work. Either way, no one is going to give you a complete solution here. We'll help YOU do YOUR homework, not do it for you.

With that said, I'll try to HELP you. HINT:I think your going to need to know how much snow the metro melt melts in an hour. Do you know this, or can you find it?

"The Metromelt is capable of melting 150,000 kg of snow in one hour."
 
  • #5
G01
Homework Helper
Gold Member
2,682
16
OK, cool! Now using that information can you find how much heat you need to melt that snow in 1 hour? HINT: What will [tex]\Delta T_{snow}[/tex] be?
 
  • #6
32
0
Isn't it Tf-Ti? Which is Tf=4 degrees celcius and Ti=-4 degrees celcius but isnt boiling point included at 0 degrees celcius?
 
  • #7
G01
Homework Helper
Gold Member
2,682
16
Yes [tex]\Delta T = T_f-T_i[/tex]

Now find the heat energy it takes to heat up the ice, and the latent heat here, add them up, and that should be your answer!

Good luck!
 
  • #8
32
0
Ya tks. I found the answer of 5.4X10 to the power of 10.
 
  • #9
G01
Homework Helper
Gold Member
2,682
16
No Problem! Good Job!
 

Related Threads on Thermal energy of snow

  • Last Post
Replies
9
Views
847
Replies
3
Views
1K
  • Last Post
Replies
1
Views
942
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
6K
  • Last Post
Replies
5
Views
20K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
1
Views
870
Top