Draw the potential energy for a reaction with DH=-150kj Ea=100kj

A potential energy diagram illustrates the energy changes that occur during a chemical reaction. It typically shows:

• Reactants: The initial energy state.
• Products: The final energy state.
• Transition State: The highest energy point between reactants and products.
• Activation Energy ($E_a$): The energy difference between the reactants and the transition state.
• Enthalpy Change ($\Delta H$): The energy difference between the reactants and the products.

• $\Delta H = -150 \text{ kJ}$: This negative value indicates an exothermic reaction, meaning the products are at a lower energy level than the reactants. The energy difference between products and reactants is 150 kJ.
• $E_a = 100 \text{ kJ}$: This is the activation energy, the energy barrier that must be overcome for the reaction to proceed.

Let's assume the potential energy of the reactants is $0 \text{ kJ}$ for simplicity.

• Reactants Energy: $0 \text{ kJ}$
• Products Energy: $0 \text{ kJ} + (-150 \text{ kJ}) = -150 \text{ kJ}$
• Transition State Energy: $0 \text{ kJ} + 100 \text{ kJ} = 100 \text{ kJ}$

1. Draw a y-axis labeled "Potential Energy (kJ)" and an x-axis labeled "Reaction Progress".
2. Mark the initial energy level for the Reactants at $0 \text{ kJ}$ on the y-axis.
3. Draw a curve starting from the Reactants level, rising to a peak. This peak represents the Transition State. The energy level of this peak should be at $100 \text{ kJ}$ on the y-axis.
4. From the Transition State, the curve should descend to the final energy level for the Products. This level should be at $-150 \text{ kJ}$ on the y-axis.
5. Draw a vertical arrow from the Reactants level up to the Transition State peak and label it "$E_a = 100 \text{ kJ}$".
6. Draw a vertical arrow from the Reactants level down to the Products level and label it "$\Delta H = -150 \text{ kJ}$". This arrow should point downwards to indicate energy release.

The diagram will show an initial energy level (reactants), a higher energy peak (transition state), and a lower final energy level (products), with the activation energy and enthalpy change clearly marked.