Warming of ice q n c ice t c ice 36 57 j mole o c
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= warming of ice q=n C ice Δ t; C ice = 36.57 J/mole▪ o C PowerPoint PPT Presentation


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Segments A, C, and E represent energy transfer from the heating source (heat) resulting in the increase in temperature of each particular state. Segments B and D represent heat transfer which is consumed by a change of state.

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= warming of ice q=n C ice Δ t; C ice = 36.57 J/mole▪ o C

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Warming of ice q n c ice t c ice 36 57 j mole o c

Segments A, C, and E represent energy transfer from the heating source (heat) resulting in the increase in temperature of each particular state. Segments B and D represent heat transfer which is consumed by a change of state.


Warming of ice q n c ice t c ice 36 57 j mole o c

Segment A represents the heat absorbed by ice providing an increase in temperature. The Specific Heat Capacity of Ice is 36.57 J/mole▪oC.


Warming of ice q n c ice t c ice 36 57 j mole o c

= warming of ice

q=nCiceΔt; Cice= 36.57 J/mole▪oC


Warming of ice q n c ice t c ice 36 57 j mole o c

Segment B represents the equilibrium between the solid phase of water (ice) and the liquid phase. The energy associated with this phase change is defined as the Molar Heat of Fusion (ΔHfusion). ΔHfusion equals 6.009 kJ/mole. The temperature of this segment defines the melting point of ice.


Warming of ice q n c ice t c ice 36 57 j mole o c

= phase change sl

q=nΔHfus; ΔHfus= 6.009 kJ/mole


Warming of ice q n c ice t c ice 36 57 j mole o c

Segment C exhibits the heat absorbed by liquid water resulting in a temperature increase. The Specific Heat Capacity of Water is 75.4 J/mole▪oC.


Warming of ice q n c ice t c ice 36 57 j mole o c

= warming of liquid water

q=nCliquidΔt; Cliquid= 75.4 J/mole▪oC


Warming of ice q n c ice t c ice 36 57 j mole o c

Segment D defines the equilibrium between the liquid and gas phase of water. The energy associated with this phase change is defined as the Molar Heat of Vaporization (ΔHvap). ΔHvap equals 40.66 kJ/mole. The temperature of this segment defines the boiling point of water.


Warming of ice q n c ice t c ice 36 57 j mole o c

= phase change lg

q=nΔHvap;

ΔHvap= 40.66 kJ/mole


Warming of ice q n c ice t c ice 36 57 j mole o c

Segment E represents the heat absorbed by water vapor providing an increase in temperature. The Specific Heat Capacity of Water Vapor is 34.26 J/mole▪oC.


Warming of ice q n c ice t c ice 36 57 j mole o c

warming of water vapor =

q=nCvapΔt; Cvap= 34.26 J/mole▪oC


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