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Is each process exothermic or endothermic? Indicate the sign of H.a. natural gas burning on a stoveb. isopropyl alcohol evaporating from skinc. water condensing from steam
c) Water condensing from steam liberates energy hence it is exothermic reaction and the sign of$\Delta \mathrm{H}$ is negative.
Chemistry 102
Chemistry 101
Chapter 9
Thermochemistry
Thermodynamics
Chemical reactions and Stoichiometry
University of Central Florida
Rice University
Brown University
University of Toronto
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Yeah, this question is asking us to identify him falling processes, hex academic or end atomic reaction and wish you in the kids. The sign off the job hit to the 1st 1 is the natural gas falling on the store. It's an example from both your reaction. So one enough natural gas will produce seeds right? And the heat goes from the system to the surrounding. So here this is except emmick reaction. And that's in cages negative. That's because of natural gas produced heat energy, which leaves Thio on increase in, uh, simply children signed The single one is I so broke. All alcohol have operated from scream. So we have i p here. Just call my p a operating from risky. So when you have isopropyl ha Pauline Yes, King And it's have a courageous fumes song Who? Ms. And that is because, uh, the high super Hakuho absorb heat from your ski and down the streets of operation and the cool, nasty experiences as the results off cooling by operation. So because the I support will hack a hole absorbs heat from your skin. The reaction is in totemic, really and doubts a page for this reaction is positive. And then the last one is water upon dancing, so have is to home. Wrong gas. What condenses from steam? So you have faced your gas going Thio, Miss Jewel Liquid. Okay, so these will have Ah, this kind of situation. We're what ties condensed in the entomological. A bond is strong. I water here down in gaseous water. So because that's because of the hydrogen bond ice existing in the liquid water. So this reaction is, uh, thanks to me because at least the information off a stronger home, most evil system. Uh, it's no reaction is a process. Not quite. Physicists crosses persons. This is a reaction. So the daughter hedge here is going to be negative, okay?
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