GPT Image Prompt
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Create a bold, scientifically accurate vertical 3:4 high school chemistry comparison poster explaining why some reactions release heat while others absorb heat. Divide the composition with one dramatic black diagonal line running from the upper-left to the lower-right. Use the upper-left region for the exothermic reaction and the lower-right region for the endothermic reaction. Give the two halves clearly different visual rhythms: expanding shapes, outward heat waves, and a descending energy profile on the exothermic side; inward arrows, cooler geometric forms, and a rising energy profile on the endothermic side. Avoid realistic laboratory photography, a central flask, matching card layouts, vertical processes, or clusters of small callouts.
Use the giant opposing words “RELEASE” and “ABSORB” as the main typographic anchors. Place the smaller complete title “EXOTHERMIC VS ENDOTHERMIC” across the diagonal boundary.
On the exothermic side, include exactly three major statements: “ENERGY LEAVES THE SYSTEM” with “The surroundings become warmer.” “BOND FORMATION RELEASES MORE ENERGY” with “More energy is released than absorbed.” Display the isolated formula “ΔH < 0” and the example “Combustion.” Integrate one large energy profile showing reactants at a higher energy level than products. Include a clear activation-energy peak labeled “ACTIVATION ENERGY,” and visually distinguish activation energy from the overall downward enthalpy change.
On the endothermic side, include exactly three major statements: “ENERGY ENTERS THE SYSTEM” with “The surroundings become cooler.” “BOND BREAKING REQUIRES MORE ENERGY” with “More energy is absorbed than released.” Display the isolated formula “ΔH > 0” and the example “Thermal decomposition.” Integrate one large energy profile showing products at a higher energy level than reactants. Include a clear activation-energy peak labeled “ACTIVATION ENERGY,” and keep it distinct from the upward enthalpy change.
Place one bold clarification strip across the diagonal divider reading: “BREAKING BONDS ABSORBS ENERGY. FORMING BONDS RELEASES ENERGY.” Add one smaller but clearly readable note: “Heat direction depends on what is defined as the system.”
Keep the chemistry precise: bond breaking always requires energy, bond formation releases energy, activation energy is the energy barrier rather than the enthalpy change, exothermic reactions are not necessarily spontaneous, endothermic reactions are not always physically cold, and reaction type must be determined by energy transfer rather than temperature alone. Use bold flat-polished educational graphics, oversized typography, clean arrows, strong geometric division, and minimal supporting imagery. Apply fiery orange, red, and warm cream to the exothermic side; cobalt, cyan, and pale violet to the endothermic side; and keep the diagonal divider solid black. Use three major statements per side, two formulas, two examples, two energy diagrams, one clarification strip, and one system-boundary note. Keep every explanation under ten words, use no paragraphs inside the poster, and preserve strong readability at thumbnail and mobile size.