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Amongst the following, the total number ...

Amongst the following, the total number of reactions/processes in which the entropy increases are:
a. `2NaHCO_(3)(s) rarr Na_(2)CO_(3)(s) +CO_(2)(g)+H_(2)O(g)`
b. A liquid cyrstallises into a solid.
c. Temperature of cystalline solid is raised from zero `K` to `100K`.
d. Hard boiling of an egg.
e. Devitrfication of glass.
f. Straching of a rubber band.
g. Desalination of water.
h. `NH_(3)(g,10 atm) rarr NH_(3)(g,1atom)`

Text Solution

AI Generated Solution

To determine the total number of reactions/processes in which the entropy increases, we will analyze each option step by step. ### Step-by-Step Solution: 1. **Reaction A: `2NaHCO_(3)(s) → Na_(2)CO_(3)(s) + CO_(2)(g) + H_(2)O(g)`** - **Analysis**: In this reaction, we start with 2 solid reactants and produce 1 solid and 2 gaseous products. The increase in the number of gaseous molecules indicates an increase in randomness and thus an increase in entropy. - **Conclusion**: Entropy increases. ...
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