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JEE Mains · Chemistry · STD 12 - 3. Chemical kinetics
A student has studied the decomposition of a gas \(AB _3\) at \(25^{\circ} C\). He obtained the following data.
| \(p ( mm Hg )\) | \(50\) | \(100\) | \(200\) | \(400\) |
| Relative \(t _{1 / 2}( s )\) | \(4\) | \(2\) | \(1\) | \(0.5\) |
- A \(0.5\)
- B \(2\)
- C \(1\)
- D \(0\)
Answer & Solution
Correct Answer
(B) \(2\)
Step-by-step Solution
Detailed explanation
\(t _{1 / 2} \propto\left( P _0\right)^{1- n }\) \(\frac{\left( t _{1 / 2}\right)_1}{\left( t _{1 / 2}\right)_2}=\frac{\left( P _0\right)_1^{1- n }}{\left( P _{0_2}\right)_2^{1- n }}\) \(\Rightarrow\left(\frac{4}{2}\right)=\left(\frac{50}{100}\right)^{1- n }\)…
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