How much no of
molecule present in one mole?

answer:

1.5×10^23

Explanation:

no. of molecules = given mass/molecular mass × avogadro's no.

= 24.5/98 × 6.022×10^23 = 1.5 × 10^23 molecules

answer:

24.5g/28 of H2SO4=0.25

it's your answer hope this will help you

"respiration is considered as an exothermic reaction because energy is released in process.

foods containing carbohydrates, proteins, lipids, fatty acids, etc. during the digestion process, it breaks down into small glucose units and these further reacts with oxygen and releases energy. energy is used for the metabolic activity of the body.

exothermic reactions are those reactions in energy is released, so, respiration reaction is considered as an exothermic reaction."