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When a hydrophobic substance like a carbon is dissolved in water, a cage of ordered water...

When a hydrophobic substance like a carbon is dissolved in water, a cage of ordered water moleculaes if is formed about it. What do you expect deltaS to be for this process? Explain your rationale.

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When substance like carbon is dissolved in water , both interact with each other and enthalpy increases ( ΔH is positive) because some of hydrogen bonds that form the clathrate cage (a cage of ordered water molecules) will be broken.

Tearing down a portion of the clathrate cage will cause the entropy to increase ( ΔS is positive ).

According to the formula: ΔG=ΔH−TΔS

ΔH  = small positive value

ΔS = large positive value

Result: ΔG is negative and hence hydrophobic interactions are spontaneous.

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