Question

When $NaN{O}_3$ is heated in a closed vessel, oxygen is liberated and $NaN{O}_2$ is left behind, at equilibrium:

• A. addition of $NaN{O}_2$ favours forward reaction
• B. addition of $NaN{O}_3$ favours forward reaction
• C. increasing temperature favours forward reaction
• D. both addition of $NaN{O}_3$ and decreasing of temperature

Answer 1

The correct option is C increasing temperature favours forward reaction

Thermal decomposition of sodium nitrate is an endothermic reaction. When the temperature is increased, the forward reaction is favored as the heat is absorbed which nullifies the effect of increased temperature.