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← ScienceWhich outcome results when a pure substance experiences fusion?
A)Temperature remains constant✓
B)Pressure decreases consistently
C)Volume decreases proportionally
D)Entropy decreases steadily
💡 Explanation
During fusion, the application of the latent heat of fusion causes a phase transition at constant temperature, because the energy is used for phase change rather than raising temperature; therefore, the temperature stays the same rather than changing.
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