Calculate the energy evolved (in joutes) per molecule of helium by the fusion of two deuterium nuclei. The mass of deuterium and helium nuclei are 2,014 amu and 4.00 amu respectively.

._1H^2 + ._1H^2 to ._2He^4+Q . In this reaction the masses of deuterium and helium atoms are 2.0141 u and 4.0024 u respectively. What is this process called, and what is the energy released Q , in MeV

Hydrogen ("_1^1H) deuterium ("_1^2H) , singly ionised helium ("_2^4H)^+ and doubly ionised lithium ("_3^6Li)^(++) all have one electron around the nucleus. Consider an electron transition from n=2 to n=1 . If the wavelengths emitted radiation are lambda_1,lambda_2,lambda_3 and lambda_4 respectively then approximately which one of the following is correct?

A flask contains Argon and chloring in the ratio of 2:1 by mass. The temperature of the mixture is 27^@C Obtain the ratio of averagae kinetic energy per molecule and root mean square speed v_(rms) of the molecules of the two gases. Given atomic mass of argon=39.9 u and molarcular mass of chlorine.=70.9 u.

The binding energies of deuterium (._1H^2) and helium (._2He^4) per nucleon are 1.1 MeV and 7.0 MeV respectively . When a helium nucleus (._2He^4) is formed by fusion of two deuterium nuclei then how much energy will be evolved ?

Calculate the mass defect and binding energy per nucleon for "_(27) Co^(59) . [The mass of Co^(59)= 58,95 amu, mass of hydrogen atom = 1.008742 amu and mass of neutron 1.008982 amu]

In has been estimated that the total energy radiated by the sun is 3.8xx10^26 J per second. The source of energy of stars is a thermonuclear reaction called nuclear fusion. Fusion reactions are not controlled. It is presumed that the energy of stars is due to two processes called proton-proton cycle and carbon nitrogen cycle. Fusion cannot take place at ordinary temperature. This, hydrogen bomb uses a small fission bomb, which on explosion causes the temperature to rise very high about 10^7 K. We have yet to see how a hydrogen bomb can be used for peaceful life-sustaining purpose. Energy released in the process of fusion is due to mass defect. It is also called Q-value. Q =Deltamc^2 , Deltam= mass defect Answer the following questions based on above passage: Fusion reaction takes place at about:

Four nuclei of an element undergo fusion to form a heavier nucleus , with release of energy . Which of the two - the parent or the daughter nucleus - would have higher binding energy per nucleon ?