Predict the sign of entropy change in each of the following `:`
(i) `H_(2) ( ` at 298 K, 1 atm ) `rarr H_(2)` at 298 K, 10 atm)
(ii) `H_(2)O( ` at 298K, 1 atm ) ` rarr H_(2)O` ( at 330K, 1atm)
(iii) `2NH_(4)NO_(3)(s) rarr 2N_(2)(g)+4H_(2)O(g) +O_(2)(g)`
(iv) Crystallization of copper sulphate from its saturated solution.
(v) `2SO_(2)(g) +O_(2)(g) hArr 2SO_(3)(g)`

Explanation

To predict the sign of entropy change (ΔS) for each of the given scenarios, we will analyze the changes in the system based on the principles of thermodynamics.

### Solution Steps:

**(i) H₂ (at 298 K, 1 atm) → H₂ (at 298 K, 10 atm)**
- When the pressure of a gas increases, the molecules are forced closer together, leading to a decrease in randomness or disorder.
- Therefore, the sign of entropy change (ΔS) is **negative**.

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