Step-by-step explanation:
Image 1 shows a model of a endothermic graph. An endothermic reaction is one that absorbs heat from its surroundings, these graphs usually show an upward sloping line, indicating an increase in energy, as the reactants absorb energy to form products. Initially, the reactants are situated on the left side of the graph, with their energy level represented by the initial potential energy. As the reaction proceeds, energy is absorbed, leading to a rise in the energy level. This rise signifies the breaking of bonds in the reactants, which necessitates an input of energy. Eventually, the energy reaches a maximum point known as the activation energy (B), which serves as the energy threshold for the reaction to proceed. Beyond the activation energy, the reactants undergo a transformation into products, causing a decrease in energy. This decrease indicates the formation of new bonds, resulting in the release of energy. (Think end sounds like ent and heat is entering the system)
Image 2 shows a model of a exothermic graph. When I see exothermic I like to think ex represents exiting which is what the energy is doing, the heat is released into the surroundings. (when heat exits the system it loses its energy) These graphs typically display a downward sloping line, representing a decrease in energy as the reaction progresses. Initially, the reactants are located on the left side of the graph, with their energy level represented by the initial potential energy. As the reaction proceeds, energy is released, causing the energy level to decrease. This decrease reflects the formation of new bonds in the products, releasing energy in the process.
Q= MCΔT: The equation Q = MCΔT is known as the heat transfer equation. It represents the amount of heat (Q) transferred during a process. The equation takes into account three variables: mass (M) of the substance undergoing the temperature change, the specific heat capacity (C) of the substance (for reference water is 4.18 J/gc), and the temperature difference (ΔT Final Temperature - Initial temperature). By multiplying the mass, specific heat capacity, and temperature difference, the equation calculates the heat transfer, which quantifies the energy gained or lost by the substance. When Q is (-) it represents the loss of energy and a positive Q represents a gain. Calculating Q is easy as you just plug in the variables.
The yellow graphs are graphs about equilibrium. An equilibrium graph represents the relationship between the concentration of reactants and products in a chemical reaction at equilibrium. It typically consists of a horizontal line, indicating a constant concentration of substances over time. The graph shows that the forward and reverse reactions occur at the same rate, resulting in a dynamic balance between reactants and products. The bottom image gives us the balanced equation of the reactants where we get N2, H2, and NH3. The graph on top of it shows them at equilibrium.