The decomposition of solid ammonium carbamate, `(NH_(4))(NH_(2)CO_(2))`, to gaseous ammonia and carbon dioxide is an endothermic reaction. `9NH_(4))(NH_(2)CO_(2)))(s)hArr2NH_(3)(g)+CO_(2)(g)` (a) When solid `(NH_(4))(NH_(2)CO_(2))` is introduced into and evacuated flask at `25^(@)C`, the total pressure of gas at equilibrium is `0.3` atm. What is the value of `K_(p) "at" 25^(@)C`? (b) Given that the decomposition reaction is at equilibrium. how would the following changes affect the total quatity of `NH_(3)` in the flask once equilibrium is re-established? (i) Adding `CO_(2)` (ii) Adding `(NH_(4))(NH_(2)CO_(2))` (iii) Removing `CO_(2)` (iv) Increasing the total volume (v) Adding neon (vi) Increasing the temperature

The decomposition of solid ammonium carbamate, `(NH_(4))(NH_(2)CO_(2))

1.	The decomposition of solid ammonium carbamate, `(NH_(4))(NH_(2)CO_(2))`, to gaseous ammonia and carbon dioxide is an endothermic reaction. `9NH_(4))(NH_(2)CO_(2)))(s)hArr2NH_(3)(g)+CO_(2)(g)` (a) When solid `(NH_(4))(NH_(2)CO_(2))` is introduced into and evacuated flask at `25^(@)C`, the total pressure of gas at equilibrium is `0.3` atm. What is the value of `K_(p) "at" 25^(@)C`? (b) Given that the decomposition reaction is at equilibrium. how would the following changes affect the total quatity of `NH_(3)` in the flask once equilibrium is re-established? (i) Adding `CO_(2)` (ii) Adding `(NH_(4))(NH_(2)CO_(2))` (iii) Removing `CO_(2)` (iv) Increasing the total volume (v) Adding neon (vi) Increasing the temperature
Answer» Correct Answer - (a) `2.31xx10^(-4)` (b) (i) decrease (ii) no change (iii) increase (iv) increase (v) no change (vi) increase `(NH_(4))(NH_(2)CO_(2))(S)hArr2NH_(3)(g)+CO_(2)(g)` 2P P Total pressure`=2P+P=0.3` `P=0.1`atm `K_(P)=(2P)^(2)P=4P^(3)` `=4xx10^(-3) atm^(3)`

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