The average binding energy per nucleon in the nucleus of an atom is approximately ........

The energy equivalent to a mass of $1 \,kg$ is

$1 \text{ amu}$ is equal to

The atomic mass of ${ }_{6} C^{12}$ is $12.000000 \ u$ and that of ${ }_{6} C^{13}$ is $13.003354 \ u$. The required energy to remove a neutron from ${ }_{6} C^{13}$,if the mass of a neutron is $1.008665 \ u$,will be: (in $MeV$)

If $M_o$ is the mass of an oxygen isotope $_8O^{17}$,$M_p$ and $M_N$ are the masses of a proton and a neutron respectively,the nuclear binding energy of the isotope is

If mass-energy equivalence is taken into account,when water is cooled to form ice,the mass of water should