AP EAMCET · Chemistry · Chemical Kinetics
The time required for completion of of a first order reaction is minutes. The half life of it (in minutes) is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
The integrated rate equation for first order reaction is as follows, k=2.303tlogAtA0 At = Concentration left at time t. A0= intial concentration. The integrated rate equation for 93.75% completion is k=2.303xlog6.25100 and k=0.693t1/2 Now, 2.303xlog6.25100=0.693t1/2t1/2=x4
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which of the following is used in perfumery?AP EAMCET 2023 Easy
- If \(\mathrm{BaCl}_2\) ionizes to an extent of \(80 \%\) in aqueous solution, the value of van't Hoff factor isAP EAMCET 2010 Easy
- The correct order of bond angles of the molecules \(\mathrm{SiCl}_4\), \(\mathrm{SO}_3, \mathrm{NH}_3, \mathrm{HgCl}_2\) isAP EAMCET 2024 Medium
- The velocities of two particles \(A\) and \(B\) are 0.05 and \(0.02 \mathrm{~ms}^{-1}\) respectively. The mass of \(B\) is five times the mass of \(A\). The ratio of their de-Broglie's wavelength isAP EAMCET 2008 Easy
- The common name of isopropyl benzene isAP EAMCET 2020 Easy
- Observe the following species
\[
\mathrm{AlCl}_3, \mathrm{NH}_3, \mathrm{H}^{+}, \mathrm{Co}^{3+},-{ }^{-} \mathrm{OH}, \mathrm{Mg}^{2+}, \mathrm{BF}_3, \mathrm{Cl}^{-}
\]
How many Lewis acids are present in the above list?AP EAMCET 2023 Medium
More PYQs from AP EAMCET
- Let \(\pi_1\) be the plane determined by the vectors \(\hat{\mathrm{i}}+2 \hat{\mathrm{j}}\) and \(3 \hat{\mathrm{j}}-2 \hat{\mathrm{k}}\). Let \(\pi_2\) be the plane determined by the vectors \(\hat{j}+2 \hat{k}\) and \(3 \hat{k}-2 \hat{i}\). If \(\theta\) is the angle between \(\pi_1\) and \(\pi_2\), then \(\cos \theta=\)AP EAMCET 2023 Medium
- If the direction cosines of two lines satisfy the equations \(l-2 \mathrm{~m}+\mathrm{n}=0\), \(l \mathrm{~m}+10 \mathrm{mn}-2 \mathrm{n} l=0\) and \(\theta\) is the angle between the lines, then \(\cos \theta=\)AP EAMCET 2025 Medium
- A steel wire of length and magnetic moment is bent into a semicircular arc of radius . The new magnetic moment isAP EAMCET 2022 Easy
- Find the equation of a line passing through the point , which cuts a triangle of minimum area from the first quadrant.AP EAMCET 2021 Medium
- A diatomic gas has an initial internal energy of \(80 \mathrm{cal}\). A work of \(18 \mathrm{cal}\) is done on the gas and the gas releases heat energy of \(42 \mathrm{~J}\). The final internal energy of the gas isAP EAMCET 2023 Easy
- The van't Hoff factor for 0.5 m aqueous \(\mathrm{CH}_2 \mathrm{FCOOH}\) solution is 1.075. What is the experimentally observed \(\Delta \mathrm{T}_{\mathrm{f}}\) (in K ) for this solution ?
\(\left(\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)\)AP EAMCET 2025 Medium