Since dry ice is solid CO2 CO2, sublimation of dry ice is predicted to result in a change of state from solid to gaseous. As a result, the reaction's entropy will rise as gaseous form has a higher entropy than solid form.
Dry ice sublimation is the scientific name for this reaction. H is positive because when it sublimes, it consumes energy.
Compared to carbon dioxide gas, dry ice is arranged in a more organized manner. As a result, unpredictability rises. S is therefore also positive. ΔH and ΔS are both positive. Dry ice sublimation causes entropy to grow as a result of heat absorption, making it larger than zero. The process in question transforms the solid ice into water vapor, which constitute the system's unpredictability. As a result, the system's entropy change is positive.
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