How Much Heat Is Required to Convert 3kg of Ice at -9°C to Steam?

AI Thread Summary
To convert 3 kg of ice at -9°C to steam at atmospheric pressure, the process involves four distinct steps: heating the ice to 0°C, melting the ice into water, heating the water to 100°C, and converting the water to steam. Each step requires calculating the specific energy needed, including the heat capacity of ice, the latent heat of fusion, the heat capacity of water, and the latent heat of vaporization. The total heat required is the sum of the energies from these four steps. Adding these individual energy values together will yield the final result. This systematic approach ensures accurate calculations for the phase change.
lenarass
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I got a question says "how much heat is requeired to change 3kg of ice at -9C to steam at atmospheric pressure?"

I must do step my step the energy of each step (energy needs to heat ice to 0,energy need to change ice to water, heat water at 100 and then make water to steam)
am going to find 4 indivitual energys.
Should i add them all together for the final result isn't it?
thanks
 
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lenarass said:
I got a question says "how much heat is requeired to change 3kg of ice at -9C to steam at atmospheric pressure?"

I must do step my step the energy of each step (energy needs to heat ice to 0,energy need to change ice to water, heat water at 100 and then make water to steam)
am going to find 4 indivitual energys.
Should i add them all together for the final result isn't it?
thanks

That's right.:biggrin:
 

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