BITSAT 2024 | Chemical Kinetics Question 3 | Chemistry

For the reaction $ 2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3} $, the rate of disappearance of $ \mathrm{O}_{2} $ is $ 2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}{ }^{-1} $ $ \mathrm{s}^{-1} $. The rate appearance of $ \mathrm{SO}_{3} $ is

$ 2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1} $

$ 4 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1} $

$ 1 \times 10^{-1} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1} $

$ 6 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1} $

BITSAT 2024

MCQ (Single Correct Answer)

-1

If for a first order reaction, the value of $ A $ and $ E_{a} $ are $ 4 \times 10^{13} \mathrm{~s}^{-1} $ and $ 98.6 \mathrm{~kJ} \mathrm{~mol}^{-1} $ respectively, then at what temperature will its half life period be 10 minutes?

330 K

300 K

330.95 K

311.15 K

BITSAT 2020

MCQ (Single Correct Answer)

-1

A volume of 50.00 mL of a weak acid of unknown concentration is titrated with 0.10 M solution of NaOH. The equivalence point is reached after 39.30 mL of NaOH solution has been added. At the half equivalence point (19.65 mL) the pH is 4.85. Thus, initial concentration of the acid and its pK_a values are

$$[HA]$$	$$p{K_a}$$
0.1 M	4.85

$$[HA]$$	$$p{K_a}$$
0.079 M	4.85

$$[HA]$$	$$p{K_a}$$
0.1 M	3.70

$$[HA]$$	$$p{K_a}$$
0.097 M	2.93

BITSAT 2020

MCQ (Single Correct Answer)

-1

A(g) $$\to$$ P(g) + Q(g) + R(g),

Follow first order kinetics with a half-life of 69.3 s at 500$$^\circ$$C. Starting from the gas 'A' an container at 500$$^\circ$$C and at a pressure of 0.4 atm, the total pressure of the system after 230 s will be

1.15 atm

1.32 atm

1.22 atm

1.12 atm

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