JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry
The number of endothermic process/es from the following is \(A.\) \(I _2( g ) \rightarrow 2 I ( g )\) \(B.\) \(HCl ( g ) \rightarrow H ( g )+ Cl ( g )\) \(C.\) \(H _2 O ( l ) \rightarrow H _2 O ( g )\) \(D.\) \(C ( s )+ O _2( g ) \rightarrow CO _2( g )\) \(E.\) Dissolution of ammonium chloride in water
- A \(3\)
- B \(2\)
- C \(4\)
- D \(1\)
Answer & Solution
Correct Answer
(C) \(4\)
Step-by-step Solution
Detailed explanation
\(A \rightarrow\) Endothermic (Atomisation) \(B \rightarrow\) Endothermic (Atomisation) \(C \rightarrow\) Endothermic (Vapourisation) \(D \rightarrow\) Exothermic (Combustion) \(E \rightarrow\) Endothermic (Dissolution)
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