When adjusted for any changes in δh and δs with temperature, the standard free energy change δg∘t at 2400 k is equal to 1.22×105j/mol . calculate the equilibrium constant at 2400 k .

K=0.0022

Explanation:

ΔG° = 1.22×10⁵ J/mol

Temperature (T) = 2400 K

ΔG° = - RT ln K

where R is gas constant whose value is 8.314 J/Kmol

           K  is equilibrium constant

           ΔG° standard free energy

ln K =

K =  

K =

K= 0.0022

hence equilibrium constant value is K=0.0022

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length