3 years ago

A sample of pure copper has a mass of 5 grams calculate its volume

1 answer:

4 0

Moles of cu = mass/Ar
= 5/Ar
=ans

1 mole = 24dm3

Vol of cu = ans/1 × 24dm3
=ans

sorry i have no calculator with me now

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$\Delta G^o=-5.4032 kJ$

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Explanation:

The three thermodinamic properties (enthalpy, entropy and Gibbs's energy) are linked in the following formula:

$\Delta G^o=\Delta H^o + T*\Delta S^o$

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$\Delta G^o$ is Gibbs's energy in kJ

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$T=\frac{\Delta H^o}{\Delta S^o}$

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