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Answer 1

$\mathbb\purple{A-\:N-\:S-\:W-\:E-\:R}$

$\tt{GIVEN}$

according to the law of equipartition of ENERGY, we have energy associated with each molecule is given by..

$\frac{1}{2}f\times R\times T$

we have degree of Freedom value for monoatoms as 3..

hence,,

Internal energy is given by..

$\frac{1}{2}3\times R\times T$

$\frac{3}{2} R\times T$


SIMILARLY for diatoms, we have 5 as a degree of Freedom (for non linear)

so,

$\frac{5}{2} R\times T$


so, hence the internal energy of oxygen molecule(oxygen is diatomic),, is

U = $\frac{5}{2} R\times T$

.....

$\mathscr\green{@\:styoo}$

Answer 2

Explanation:

Convection is the transfer of heat due to the bulk movement of molecules within fluids, including molten rock. Convection includes sub-mechanisms of advection, and diffusion. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place.