AP EAMCET · Chemistry · Thermodynamics (C)
Which one of the following involves decrease in entropy?
- A \(2 \mathrm{NaHCO}_{3(s)} \longrightarrow \mathrm{Na}_2 \mathrm{CO}_{3(s)}+\mathrm{CO}_{2(g)}+\mathrm{H}_2 \mathrm{O}_{(g)}\)
- B \(\mathrm{CCl}_{4(s)} \longrightarrow \mathrm{CCl}_{4(l)}\)
- C \(\mathrm{Zn}_{(s)}+2 \mathrm{HCl}_{(a q)} \longrightarrow \mathrm{ZnCl}_{2(a q)}+\mathrm{H}_{2(g)}\)
- D \(\begin{aligned}
& \mathrm{CaO}_{(s)}+\mathrm{CO}_{2(g)} \longrightarrow \mathrm{CaCO}_{3(s)}
\end{aligned}\)
Answer & Solution
Correct Answer
(D) \(\begin{aligned}
& \mathrm{CaO}_{(s)}+\mathrm{CO}_{2(g)} \longrightarrow \mathrm{CaCO}_{3(s)}
\end{aligned}\)
Step-by-step Solution
Detailed explanation
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