The definition of activity is:(adsbygoogle = window.adsbygoogle || []).push({});

$$\mu _{i}=\mu _{i}^{0}+RT\cdot \ln a_{i}$$

where μ_{i}is the chemical potential of i in current state and μ_{i}^{0}is the chemical potential of i in standard state.

The current and standard state have the same temperature or can their temperature differ?

If their temperature can differ, than T in the definition equation is the temperature of current state?

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# Definition of activity

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