Saved Bookmarks
| 1. |
For the first order reaction `AtoB`, the time taken to reduce to `1//4` of initial concentration is 10 min. The time required to reduce to `1//16` of initial concentration will beA. 10 minB. 20 minC. 4.46 minD. 2.24 min |
|
Answer» Correct Answer - B `10 K=2.303"log"(1)/(1-(1)/(4))=2.303 "log"(4)/(3)` `tk=2.303"log"(1)/(1-(1)/(16))=2.303"log"(16)/(15)` `(1),(2)(t)/(10)=(("log"16)-("log"15))/(("log"4)-("log"3))=(0.028)/(0.125)` `rArrt=(0.28)/(0.125)min=2.24min` |
|