Work Function


Moderators: Chem_Mod, Chem_Admin

Anokhi Patel 2B
Posts: 76
Joined: Fri Aug 09, 2019 12:17 am

Work Function

Postby Anokhi Patel 2B » Wed Oct 09, 2019 9:46 pm

Professor Lavelle always referred to the formulas as work functions, what exactly does that mean?

Thanks.

Junwei Sun 4I
Posts: 125
Joined: Wed Oct 02, 2019 12:16 am

Re: Work Function

Postby Junwei Sun 4I » Wed Oct 09, 2019 9:59 pm

Work function just means the minimum amount of energy required to remove an electron from the surface of a metal. You can also look at it as the threshold energy. Once the energy of the photon exceeds the threshold energy the electron gets removed from the metal surface.

Sydney Myers 4I
Posts: 100
Joined: Fri Aug 09, 2019 12:17 am

Re: Work Function

Postby Sydney Myers 4I » Wed Oct 09, 2019 10:14 pm

Another thing to note is that there is actually no formula for the work function that we learned. It's a constant that is usually given in a problem (if not, it can be found if you have an electron's excess energy after being removed and the energy that the photon had when it hit the electron)

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Re: Work Function

Postby AKatukota » Wed Oct 09, 2019 10:19 pm

Work function is basically the energy required to remove an electron from the metal surface. If the energy of the photon is not greater than or equal to the energy to remove an electron (work function), then no electrons will be emitted.


Return to “Properties of Light”

Who is online

Users browsing this forum: No registered users and 1 guest