The correct answer to the question is : Nuclear fusion.
EXPLANATION:
Nuclear fusion is the thermonuclear reaction in which light unstable nuclei will fuse with each other to form heavy stable nuclei with the release of energy.
This energy is released due to the mass defect.
Photosynthesis, anaerobic respiration are the life processes where gamma rays can not be emitted.
Similarly photoelectric emission results no gamma radiation. In this process, electrons are emitted from the surface of the metal when light of suitable frequency falls on it.
Hence, the correct answer is nuclear fusion where gamma energy is produced due to radioactive process.
Answer:
T_2= 234.37 K
Explanation:
According to Claperyon, we know that
![P_2-P_1= \frac{\Delta H_{fus}}{\Delta V}\times\frac{T_1}{T_2}](https://tex.z-dn.net/?f=P_2-P_1%3D%20%5Cfrac%7B%5CDelta%20H_%7Bfus%7D%7D%7B%5CDelta%20V%7D%5Ctimes%5Cfrac%7BT_1%7D%7BT_2%7D)
P_1= Atmospheric pressure 760 mm Hg
P_2 = pressure at the bottom of the column
= 10×10^3 mm of Hg+ 760 mm of Hg
= 10760 mm of Hg
now,
P_2-P_1= 10760-760= 10^4 mm
P_2-P_1 ( in pascals) = 10^4× 133.322= 1333220 mm
the enthalpy of fusion (ΔH-fus) of mercury is 2.292 KJ/mol
use the above equation to calculate ΔT as follows
![1333220= \frac{2292}{0.517\times10^{-6}}\times ln\frac{T_2}{234.3K}](https://tex.z-dn.net/?f=1333220%3D%20%5Cfrac%7B2292%7D%7B0.517%5Ctimes10%5E%7B-6%7D%7D%5Ctimes%20ln%5Cfrac%7BT_2%7D%7B234.3K%7D)
therefore, T_2= 234.37 K