How to figure out the amount of heat (joules) needed to melt 1g of ice?

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SUMMARY

The amount of heat required to melt 1 gram of ice is definitively 334 Joules, as indicated by the latent heat of fusion for water. This value is derived from reference tables commonly used in chemistry. The specific heat capacity of water, which is 4.18 J/g°C, is not applicable for this calculation since the temperature remains constant during the phase change from solid to liquid. Understanding the concept of latent heat is crucial for solving such problems in chemistry.

PREREQUISITES
  • Understanding of latent heat of fusion
  • Familiarity with specific heat capacity
  • Basic knowledge of phase changes in matter
  • Ability to interpret reference tables in chemistry
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  • Research the concept of latent heat and its applications in thermodynamics
  • Learn how to use reference tables for various substances in chemistry
  • Study the differences between specific heat capacity and latent heat
  • Explore practical examples of phase changes and energy calculations in chemistry
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High school students, particularly those in honors chemistry, educators teaching thermodynamics, and anyone interested in understanding heat transfer during phase changes.

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So, first day of school today, and I'm in honors chemistry. I got a packet with refernce tables etc. and a homework assignment designed just to get you to use the tables and be able to connect one thing they say with another. Anyway, one question is "How much heat is required to melt 1g of ice?" I'm guessing by "how much", it's indicating that joules would be the proper unit to answer in, and the tables say that water has a specific heat capacity of 4.18 J/g times degrees celsius. My initial guess would just be 4.18 joules, but I've no real idea, can anyone explain how I'd go about figuring this out?
 
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Don't forget the latent heat of fusion.
 
Uhh...
Dude, I'm a junior in high school, besides learning the formulas for respiration and photosynthesis last year in bio, I have no real experience in chemistry at all, you completely lost me...
 
You said you got a packet with reference tables. Take a look and see if it has something called "latent heat of fusion."

Basically, it takes energy to melt ice and while the transition between solid and liquid is taking place the temperature remains constant. That energy is called the heat of fusion.

If that still doesn't help then maybe your teacher is only trying to see how much you know about chemistry by giving problems ranging from simple to advanced.
 
Tide said:
You said you got a packet with reference tables. Take a look and see if it has something called "latent heat of fusion."

Basically, it takes energy to melt ice and while the transition between solid and liquid is taking place the temperature remains constant. That energy is called the heat of fusion.

If that still doesn't help then maybe your teacher is only trying to see how much you know about chemistry by giving problems ranging from simple to advanced.
Alright...

It shows that with water, the heat of fusion is 334J/g, so that's the answer?
 
Multiply that number by 1 g and you get 334 Joules. :-)
 

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