Chemistry · 2019
NEET 2019 · 20 May · Code G1 · Q114
A first order reaction has a rate constant of 2.303 × 10^-3 s^-1. The time required for 40 g of this reactant to reduce to 10 g will be - [Given that…
A first order reaction has a rate constant of $\displaystyle 2.303 \times 10^{-3} \mathrm{~s}^{-1}$. The time required for $\displaystyle 40$ g of this reactant to reduce to $\displaystyle 10$ g will be - [Given that $\displaystyle \log _{10} 2=0.3010$ ]
Official answer
(4)
$\displaystyle 602$ s
More from Chemical Kinetics
- For a certain reaction R → Product, the plot of concentration [R] vs time has a negative slope as shown. The order of reaction is:2026
- The correct difference between first- and second-order reactions is that2018
- Activation energy ( E_a ) and rate constants ( k_1 and k_2 ) of a chemical reaction at two different temperatures ( T_1 and T_2 ) are related by:2012
- The rate of a reaction quadruples when temperature changes from 27^° C to 57^° C. Calculate the energy of activation. Given R=8.314 J K^-1 mol^-1,…2024
- The rate of a first-order reaction is 0.04 mol l^-1 s^-1 at 10 seconds and 0.03 mol l^-1 s^-1 at 20 seconds after initiation of the reaction. The…2016
- During the kinetic study of the reaction, 2 A+B → C+D, following results were obtained: Based on the above data which one of the following is correct?2010
- The addition of a catalyst during a chemical reaction alters which of the following quantities?2016
- Mechanism of a hypothetical reaction X_2+Y_2 → 2 XY is given below (i) X_2 → X+X (fast) (ii) X+Y_2 ⇌ XY+Y (slow) (iii) X+Y → XY (fast) The overall…2017
NEET (UG) 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.