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Heat Is Added to a Pure Substance in a Closed

Question 1250

Multiple Choice

Heat is added to a pure substance in a closed container at a constant rate.The figure shows a graph of the temperature of the substance as a function of time.If Lf = latent heat of fusion and Lv = latent heat of vaporization,what is the value of the ratio Lv / Lf for this substance? Heat is added to a pure substance in a closed container at a constant rate.The figure shows a graph of the temperature of the substance as a function of time.If L<sub>f</sub> = latent heat of fusion and L<sub>v</sub> = latent heat of vaporization,what is the value of the ratio L<sub>v</sub> / L<sub>f</sub> for this substance? A) 5.0 B) 4.5 C) 7.2 D) 3.5 E) 1.5


A) 5.0
B) 4.5
C) 7.2
D) 3.5
E) 1.5

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