IIT JEE 2009 CHEMISTRY

Related Keyword : IIT JEE 2009 CHEMISTRY |

 

The total number of a and b particles emitted in the nuclear reaction 238U92 ---> 214Pb82

The total number of a and b particles emitted in the nuclear reaction  

      238U92 --->  214Pb82


Solution:

 8

         Below is the chain of reaction

                         -2α                        -2β

        92U238  ---------->  80X214  ---------->  82Pb214   (6a, 2b), total 8 particles




25th February 2019

jee preparation

By

At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to

Integer Type

At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is

Solution

Urms=UMP
3RTMx=2RTMy
3R×40040=2R×60My
My=4
Hence answer is (b)

25th February 2019

Ritish singh

By