An engineer is designing a process to cool hot water from a power plant before returning the water to the environment. His plan is to allow the hot water to flow past a pipe containing a solution that is undergoing a chemical reaction. The chemical reaction will be able to remove some of the water's heat through the metal pipe. Which of the following reactions could take place inside the cooling pipe to remove heat from the hot water?

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Question

An engineer is designing a process to cool hot water from a power plant before returning the water to the environment. His plan is to allow the hot water to flow past a pipe containing a solution that is undergoing a chemical reaction. The chemical reaction will be able to remove some of the water's heat through the metal pipe. Which of the following reactions could take place inside the cooling pipe to remove heat from the hot water?  

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sissyedgar · Answer

A. NH4Cl + heat → NH4+ + Cl-
B. C + O2 → CO2 + heat
C. N2 + 3H2 → 2NH3 + heat 
D. CaCl2 → Ca2+ + 2Cl- + heat

sissyedgar · Answer

@Whitemonsterbunny17

caozeyuan · Answer

well, that's just too obvious becasue there is only one reaction with heat on the reactant side

sissyedgar · Answer

Thier all on the reactant side... o wait, heres the pic for it {not tht itl help nun} https://app148.studyisland.com/pics/296745water.png

sissyedgar · Answer

well, all but 1 anywayz...

caozeyuan · Answer

No! you need to know your chemical equation left side is reactant, right side is product

caozeyuan · Answer

This fancy question is just asking which raction is endothemic

sissyedgar · Answer

i forgot, lol