Endothermic or Exothermic

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torialmquist1F
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Joined: Sat Jul 22, 2017 3:00 am

Endothermic or Exothermic

Postby torialmquist1F » Sun Jan 28, 2018 9:36 pm

Is condensation endothermic or exothermic and why?

Kennedy Moore 1D
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Joined: Fri Sep 29, 2017 7:06 am

Re: Endothermic or Exothermic

Postby Kennedy Moore 1D » Sun Jan 28, 2018 9:38 pm

Condensation is an exothermic process, as the water looses heat in order to turn from vapor to a liquid, which is released from the system into the surroundings

Julianna Thrasher 1B
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Joined: Thu Jul 27, 2017 3:00 am

Re: Endothermic or Exothermic

Postby Julianna Thrasher 1B » Sun Jan 28, 2018 9:40 pm

Condensation is exothermic. This is because heat is released when a substance changes from gas to a liquid and it is condensing.

lindsay lathrop 2C
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Re: Endothermic or Exothermic

Postby lindsay lathrop 2C » Sun Jan 28, 2018 9:44 pm

Condensation is exothermic. One reason we know this is because its counterpart phase change is vaporization and vaporization is endothermic. A more direct reason would be that in condensation the particles are beginning to move a lot slower, vibrate a lot less and more hydrogen bonds are forming. These all are releasing energy, as a lot less energy is needed to move at these slower speeds etc. And when energy is released it is exothermic.

Phi Phi Do 2E
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Re: Endothermic or Exothermic

Postby Phi Phi Do 2E » Sun Jan 28, 2018 9:58 pm

Condensation is an exothermic reaction because heat is being released during the phase change from a gas to liquid.

mayapartha_1D
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Joined: Fri Sep 29, 2017 7:07 am

Re: Endothermic or Exothermic

Postby mayapartha_1D » Sun Jan 28, 2018 10:45 pm

Condensation is exothermic! It's easy to just think of where the heat is going (gas has more heat/energy than a liquid, so the heat must be leaving the gas).

Emma Miltenberger 2I
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Re: Endothermic or Exothermic

Postby Emma Miltenberger 2I » Sun Feb 04, 2018 3:10 pm

Condensation is exothermic because bonds are being formed.

Arshpreet Sandhu 1B
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Re: Endothermic or Exothermic

Postby Arshpreet Sandhu 1B » Sun Feb 04, 2018 9:36 pm

exothermic due to heat release

Joyce Gu 1E
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Joined: Tue Nov 24, 2015 3:00 am

Re: Endothermic or Exothermic

Postby Joyce Gu 1E » Sat Mar 17, 2018 6:59 pm

condensation is an exothermic process because the water vapor molecules lose energy as heat

IsabelLight2H
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Joined: Wed Oct 03, 2018 12:15 am

Re: Endothermic or Exothermic

Postby IsabelLight2H » Mon Jan 21, 2019 11:34 pm

How do I know if it's endothermic or exothermic?

Arta Kasaeian 2C
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Joined: Mon Jan 07, 2019 8:22 am

Re: Endothermic or Exothermic

Postby Arta Kasaeian 2C » Tue Jan 22, 2019 1:57 am

Condensation is the transformation of gas to liquid, for which energy is released, making it exothermic and within an equilibrium, an increase in temperature would favor the reactant side.

Hilda Sauceda 3C
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Re: Endothermic or Exothermic

Postby Hilda Sauceda 3C » Tue Jan 22, 2019 8:47 am

Exothermic because heat is being released

varunhariharan
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Re: Endothermic or Exothermic

Postby varunhariharan » Wed Jan 23, 2019 9:46 am

Condensation is an exothermic reaction. As the water molecules change phase from gas to liquid, energy is released.

Hannah Pham 1D
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Joined: Fri Sep 28, 2018 12:19 am

Re: Endothermic or Exothermic

Postby Hannah Pham 1D » Wed Jan 23, 2019 3:38 pm

Condensation is exothermic because it releases heat. You see this in real life when you have a cold drink and condensation forms water droplets on the side of the cup.

Anna O 2C
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Re: Endothermic or Exothermic

Postby Anna O 2C » Wed Jan 23, 2019 3:49 pm

As stated above, condensation is exothermic. When you look at it from a molecular standpoint, the molecules are transitioning from the gas phase to the liquid phase. Individual atoms are thus coming together and bonding with each other, a process that release excess heat as the bonded molecule is more stable and requires less energy. This energy is then given off as leftover heat.

Sarah Fatkin 4I
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Re: Endothermic or Exothermic

Postby Sarah Fatkin 4I » Wed Jan 23, 2019 4:11 pm

Condensation is exothermic. For example, like Dr. Lavelle said in lecture, when steam condenses from vapor to liquid, it releases heat. This is why steam burns are worse than burns from liquid water.

Philipp_V_Dis1K
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Joined: Fri Sep 28, 2018 12:20 am

Re: Endothermic or Exothermic

Postby Philipp_V_Dis1K » Wed Jan 23, 2019 6:37 pm

Exothermic, one can look at the reverse, which is endothermic, when one sweats and the body heat is used up to vaporize the sweat.

Samantha Chang 2K
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Re: Endothermic or Exothermic

Postby Samantha Chang 2K » Wed Jan 23, 2019 8:21 pm

Condensations is an exothermic process!

805087225
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Joined: Thu Jun 07, 2018 3:00 am

Re: Endothermic or Exothermic

Postby 805087225 » Thu Jan 24, 2019 9:56 am

Its exothermic, because it releases heat and is the opposite of the process that requires heat to change phase.

Kirsty Star 2H
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Joined: Fri Sep 28, 2018 12:24 am

Re: Endothermic or Exothermic

Postby Kirsty Star 2H » Thu Jan 24, 2019 5:01 pm

Solid --> Liquid --> Gas is endothermic (surroundings get warmer)
Gas --> Liquid --> Solid is exothermic (surroundings get cooler)

IsabelLight2H
Posts: 34
Joined: Wed Oct 03, 2018 12:15 am

Re: Endothermic or Exothermic

Postby IsabelLight2H » Thu Jan 24, 2019 11:57 pm

How do I know if it's endothermic or exothermic if there's no delta H given?


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