Equilibrium

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat to its surroundings.

Front

In an exothermic reaction, where is the energy transferred from?

Back

Energy is transferred from the reactants to their surroundings.

Front

What does a double arrow (⇌) in a chemical equation indicate?

Back

It indicates that the reaction is reversible.

Front

What is Le Chatelier's Principle?

Back

Le Chatelier's Principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium will shift to counteract the change.

Front

How does adding a catalyst affect the position of equilibrium?

Back

Adding a catalyst does not shift the position of equilibrium; it only speeds up the rate at which equilibrium is reached.

Front

What effect does increasing pressure have on gaseous reactions?

Back

Increasing pressure shifts the equilibrium position towards the side with fewer moles of gas.

Front

What happens to the equilibrium position when temperature is decreased in an exothermic reaction?

Back

The equilibrium position shifts to the right, favoring the formation of products.

Front

In which state of matter do changes in pressure affect equilibrium?

Back

Changes in pressure only affect substances that are in the gaseous state.

Front

What is the significance of ΔH in a chemical reaction?

Back

ΔH represents the change in enthalpy, indicating whether a reaction is exothermic (negative ΔH) or endothermic (positive ΔH).

Front

What is an irreversible reaction?

Back

An irreversible reaction is a chemical reaction that proceeds in one direction only, with reactants converting to products without reverting back.