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Joule-Thomson co-efficient is defined as

A. μ = (∂P/∂T)H

B. μ = (∂T/∂P)H

C. μ = (∂E/∂T)H

D. μ = (∂E/∂P)H

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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