Aqa alevel chemistry help needed asap

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alevelssss
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http://pmt.physicsandmathstutor.com/...%20A-level.pdf
5(d)(i) Can someone please explain to me why in the markscheme theres a phase boundary between ag20 and ag when they're both solids?????????????!!!!???
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charco
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(Original post by alevelssss)
http://pmt.physicsandmathstutor.com/...%20A-level.pdf
5(d)(i) Can someone please explain to me why in the markscheme theres a phase boundary between ag20 and ag when they're both solids?????????????!!!!???
The definition of a phase is a physically distinct state.

A phase boundary is found between a metal and a silver chloride slurry.
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alevelssss
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(Original post by charco)
The definition of a phase is a physically distinct state.

A phase boundary is found between a metal and a silver chloride slurry.
oh okay thank you!!! makes sense now
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