A chemist measures the enthalpy change
2Na
(s)
Cl2
(g)
2NaCl
(s)
/kJmol
.
reaction |
12Na (s)14Cl2 (g)12NaCl (s) |
2NaCl (s)2Na (s)Cl2 (g) |
4NaCl (s)4Na (s)2Cl2 (g) |
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Entropy change = no . Of molecules of product - no. Of reactant molecules .
1. 2NaCl - (2Na + 1 Cl2) = -1 .
2. 12- 26 = -14
3. 2-3 = -1
4 . 4- 6 = -2 .
A chemist measures the enthalpy change 2Na (s) Cl2 (g) 2NaCl (s) /kJmol . reaction 12Na...
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