Phase Transition Temp.

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905373636
Posts: 62
Joined: Thu Aug 01, 2019 12:15 am

Phase Transition Temp.

Postby 905373636 » Fri Jan 24, 2020 12:27 pm

Can someone reiterate how temperature remains constant during a phase transition? Does it then suddenly just spike/fall after the transition is complete? A bit confused just by the process of it all. How is the steam causing burns example applicable?

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

Re: Phase Transition Temp.

Postby Elizabeth Harty 1A » Fri Jan 24, 2020 1:43 pm

it has to do with the energy stored in the bonds and the lack of temperature signifies and phase transition

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

Re: Phase Transition Temp.

Postby 805307623 » Fri Jan 24, 2020 2:17 pm

When a substance's phase changes, its temperature remains constant until the phase change completes. For example, when ice is heated, its temperature increases until it reaches 0 C. At 0 C, it starts melting and the solid water is turned to liquid water.

Ellen Amico 2L
Posts: 101
Joined: Thu Sep 19, 2019 12:16 am

Re: Phase Transition Temp.

Postby Ellen Amico 2L » Fri Jan 24, 2020 3:13 pm

During a phase change, all the added heat energy is going towards breaking the bonds rather than increasing the temperature. Therefore, the temperature won't change.

Asha Agarwal 1E
Posts: 51
Joined: Fri Aug 30, 2019 12:16 am

Re: Phase Transition Temp.

Postby Asha Agarwal 1E » Fri Jan 24, 2020 3:58 pm

Not seeing a temperature change does not mean that there is no change in heat occurring. As the temperature of a system is increased, more heat is being applied and in the normal states, the temperature will increase, but when it comes to transition states, a lot of energy is required for the transition to happen so all the heat entering the system stays in the system and is increasing even though the temperature isn't.

Catherine Daye 1L
Posts: 104
Joined: Wed Sep 11, 2019 12:16 am

Re: Phase Transition Temp.

Postby Catherine Daye 1L » Fri Jan 24, 2020 5:41 pm

Temperature remains constant during a phase change because the energy that would increase temperature is instead being used to break bonds for a phase change.

Mariah
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: Phase Transition Temp.

Postby Mariah » Fri Jan 24, 2020 8:14 pm

Ellen Amico 2L wrote:During a phase change, all the added heat energy is going towards breaking the bonds rather than increasing the temperature. Therefore, the temperature won't change.


So once the phase is reached will the temperature then change?


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