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Problem: Hot and cold packs are commercially available for both medical treatment and food storage. Ammonium chloride, NH4Cl, is commonly used in cold packs and is activated when it is dissolved in solution. What are the signs for ∆H, ∆S, ∆G (at high T) and ∆G (low T)? 

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Hot and cold packs are commercially available for both medical treatment and food storage. Ammonium chloride, NH4Cl, is commonly used in cold packs and is activated when it is dissolved in solution. What are the signs for ∆H, ∆S, ∆G (at high T) and ∆G (low T)? 

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Our tutors have indicated that to solve this problem you will need to apply the Spontaneous Reaction concept. You can view video lessons to learn Spontaneous Reaction. Or if you need more Spontaneous Reaction practice, you can also practice Spontaneous Reaction practice problems.

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Our tutors rated the difficulty ofHot and cold packs are commercially available for both medic...as medium difficulty.

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Our expert Chemistry tutor, Jules took 2 minutes and 57 seconds to solve this problem. You can follow their steps in the video explanation above.