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← ScienceWhich outcome regarding volume change occurs when water reaches the critical point under high pressure?
A)Latent heat approaches zero✓
B)Density will always increase
C)Volume exhibits linear change
D)Liquid-gas interface becomes stable
💡 Explanation
At critical point, liquid and gas phases become indistinguishable; therefore the heat of vaporization, aka latent heat, to transform from liquid to gas goes to zero because surface tension vanishes rather than requiring energy for a phase transition.
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