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From a molecular viewpoint, where does the energy…

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Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 Problem 10 Problem 11 Problem 12 Problem 13 Problem 14 Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Problem 21 Problem 22 Problem 23 Problem 24 Problem 25 Problem 26 Problem 27 Problem 28 Problem 29 Problem 30 Problem 31 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 40 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46 Problem 47 Problem 48 Problem 49 Problem 50 Problem 51 Problem 52 Problem 52 Problem 53 Problem 55 Problem 56 Problem 57 Problem 58 Problem 59 Problem 60 Problem 61 Problem 62 Problem 63 Problem 64 Problem 65 Problem 66 Problem 67 Problem 68 Problem 69 Problem 70 Problem 71 Problem 72 Problem 73 Problem 74 Problem 75 Problem 76 Problem 77 Problem 78 Problem 79 Problem 80 Problem 81 Problem 82 Problem 83 Problem 84 Problem 85 Problem 86 Problem 87 Problem 88 Problem 89 Problem 90 Problem 91 Problem 92 Problem 93 Problem 94 Problem 95 Problem 96 Problem 97 Problem 98 Problem 99 Problem 100 Problem 101 Problem 102 Problem 103 Problem 104 Problem 105 Problem 106 Problem 107 Problem 108 Problem 109 Problem 110 Problem 111 Problem 112 Problem 113 Problem 114 Problem 115 Problem 116 Problem 117 Problem 118 Problem 119 Problem 120 Problem 121 Problem 122 Problem 123 Problem 124 Problem 125 Problem 126 Problem 127 Problem 128 Problem 129 Problem 130 Problem 131 Problem 132 Problem 133 Problem 134 Problem 135 Problem 136 Problem 137 Problem 138 Problem 139 Problem 140 Problem 141 Problem 142 Problem 143 Problem 144 Problem 145 Problem 146 Problem 147 Problem 148

Problem 19 Easy Difficulty

Explain the difference between an exothermic and an endothermic reaction. Give the sign of H for each type of reaction.

Answer

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Chapter 9

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Video Transcript

this question wants us to explain the difference between ex atomic reaction and, uh, entertain me. Chri option. So accept Tim Inc reaction the C stand. Ah, gifts his to the surrounding And that has been evidenced by the high temperature off their reaction vessel. Okay, so we touched the reaction vessel. It is usually warm hearts. As the results off the system generated hit and dissipating. It's to this surrounded. We'll handle atomic reaction. It is the opposite. Is a system Hobbs off seas wrong, Just surrounded here. He's wrong to say that, and that is evident by, uh, the cool hold. Goodness. Oh, uh, reaction aggressive while the temperature drop this is I temp message. So when you touch the reaction vessel for the end of a chemical reaction in this usually called because these hubs off heat from the surrounding off duty dishonesty constitute, you are your fingers tree tops off each from your finger, and they feel that it lost us a course sensation. So for the eggs, atomic reaction, Delta page, he's negative. Wife or end atomic reaction did out. H is a positive because, uh, yeah, the doubts ahhhhh off free on him. That's because it out to hate your reaction is H products. Maino State's reacted. Okay, so if we draw on energy profile a diagram, this is, uh, reaction coordinates. And this is, uh, n icky. So if you have this kind of system, we had a product. He sat lula energy computer to their reactant. So this is reactant and this is products. So you protect yourself, Noah Hannity computer reactant again. That's a hitch. Will be negative. And this is, uh, it's a temic. Okay for the hand. Atomic reaction. Yeah, uh, reaction one h we'll have reactant. And then products here there would call his h no energy. So here, Delta Hitch for the reaction is positive because, uh, crudo is at higher handing kid, and they're reacting. So this is end atomic, so we can see what? The end of Temic reaction and a keyhole pro dots. It's created on the energy off. Reactant for the eggs. Atomic reaction, energy of reactions with created in a key off produce

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