Recent questions tagged Probability-mcq

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Q: In some cases, it is found that a large number of colliding molecules have energy more than thereshold value, yet the reaction is slow. Why?

In some cases, it is found that a large number of colliding molecules have energy more than thereshold value, yet the ... is slow. Why? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: Can a reaction have negative or zero activation energy ?

Can a reaction have negative or zero activation energy ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: The reactions `:2CO(g)=O_(2)9g)rarr 2CO_(2)(g)` and `2NO(g)+O_(2)(g) rarr 2NO_(2)(g)` look to be similar. Yet the former is slower than latter at same

The reactions :2CO(g)=O29g)→2CO2(g) and 2NO(g)+O2(g)→2NO2(g) look to be similar. Yet the former is ... at same temperature. Why ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What are the units of a pseudo unimolecular and pseudo bimolecular reaction ?

What are the units of a pseudo unimolecular and pseudo bimolecular reaction ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What is the effect of adding catalyst on free energy change `(DeltaG)` of a reaction ?

What is the effect of adding catalyst on free energy change ( Δ G ) ( of a reaction ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: Why equilibrium constant of a reaction does not change in the presence of a catalyst ?

Why equilibrium constant of a reaction does not change in the presence of a catalyst ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What is the value of `K` at high temperature. Is it feasible or not ?

What is the value of K K at high temperature. Is it feasible or not ? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: Why are substance such as platinum and palladium often used for carrying out electrolysis of aqueous solutions?

Why are substance such as platinum and palladium often used for carrying out electrolysis of aqueous solutions? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What is the role of desorption in the process of catalysis?

What is the role of desorption in the process of catalysis? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance

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Q: What modification can you suggest in the Hardy Schulze law?

What modification can you suggest in the Hardy Schulze law? Select the correct answer from above options...

asked Jan 4, 2022 in Education by JackTerrance