The number of endothermic process/es from the following is_______.
2I(g)
H(g) + Cl(g)
H 2 O(g)
CO 2 ( g)
Text Solution
Verified by Experts4
(4) The decomposition reactions are endothermic reactions. The reactions I 2 (g) 
2I(g) and HCl(g) 
H(g) + Cl(g) are decomposition reactions. The heat vaporisation is an endothermic reaction. Hence, the conversion of H 2 O(l) 
H 2 O(g) is endothermic process. The heat of combustion is an exothermic process. The heat involved in C(s) + O 2 (g) 
CO 2 (g) is heat of combustion. The dissolution of ammonium chloride in water is an endothermic process.
NH 4 Cl(s) 
(aq) + Cl - (aq); 
H = +15.1 kJ/ mol.
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