Answer:
A(g) + B(g) → 3C(g).
Explanation:
As the no. of gaseous molecules increases in the product side than the reactants, disordering occurs and ΔSrxn be more positive.
as in: A(g) + B(g) → 3C(g).
the no. of gaseous molecules in the reactants side (2) and be (3) in the products side, disorder increases.
While, as the no. of gaseous molecules decreases in the product side than the reactants, ordering occurs and ΔSrxn be more negative.
as in:
2A(g) + B(g) → C(g)
,
the no. of gaseous molecules in the reactants side (3) and be (1) in the products side, ordering increases.
2A(g) + 3B(g) → 4C(g)
,
the no. of gaseous molecules in the reactants side (5) and be (4) in the products side, ordering increases.
2A(g) + B(s) → 3C(g).
the no. of gaseous molecules in the reactants side (3) and be (3) in the products side, ordering is the same.
<h2>Enthalpy Difference</h2>
Explanation:
- The 2nd Law of Thermodynamics states that when energy is converted from one form to another, some is always lost due to difference in the enthalpy of the system, which always increases.
- Enthalpy may be defined as the amount of energy that is stored.
- During a chemical reaction, the system will absorb or gives out energy in the form of heat and light.
- The change in energy during a chemical reaction is due to the difference in the energy amount of reacting species and species that are formed.
Answer:
Metals are thermal conductor.