Question

Magnesite is calcined to obtain magnesia.Which is used to make refractory bricks. Write the decomposition reaction.

Answer 1

Question:

Magnesite is calcined to obtain magnesia which is used to make refractory bricks. Write the decomposition reaction?

Answer:

MgCO₃(s)    =      MgO(s)         +    CO₂

Magnesium        Magnesium        Carbon

Carbonate          Oxide                 Dioxide

(Magnesite)        (Magnesia)

ΔH° = 25.8 kcal/mol at 1200 K

ΔH° = Enthalpy =. It is in positive which means system is absorbing energy.

Explanation:

Refractory bricks =>

1. Another name is fire bricks.

2. Fire bricks because it can withstand high temperatures.

3. Color of fire bricks can be white or yellowish white.

4. Fire bricks are used in construction for Boilers, Combustion Chambers, Chimney Flues etc.

Answer 2

$\Huge{\textbf{\textsf{{\color{blue}{ᗩи}}{\purple{ѕ}}{\red{ωєƦ}}{\color{yellow}{:}}}}}$

MgCO₃(s)    =      MgO(s)         +    CO₂

Magnesium        Magnesium        Carbon

Carbonate          Oxide                 Dioxide

(Magnesite)        (Magnesia)

ΔH° = 25.8 kcal/mol at 1200 K

ΔH° = Enthalpy =. It is in positive which means system is absorbing energy.