Anyone Help please??

a. 0.5 mol

b. 25 cm³

c. (i) 75 cm³

(ii) 50 cm³

Avogadro's hypothesis:  

In the same T,P and V, the gas contains the same number of molecules  

So the ratio of gas volume will be equal to the ratio of gas moles  

Reaction

2NO(g)+O₂(g)⇒2NO₂(g)

a. mol O₂

b. volume of  O₂

c. (i)total volume

(ii)volume of NO₂

lithosphere and asthenosphere

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.