Jump to content

Where Does The Loss of Mass Occur When an Exothermic Reaction Occurs?

dr.syntax
in Modern and Theoretical Physics

Featured Replies

I saw AJB say that the mass of a free electron + free proton is larger than that of a hydrogen atom....why is that?

the mass of hydrogen is lighter because of the binding energy which is negative.

 

m = mp + me - E/c^2

 

m is mass of hydrogen (in ground state), mp mass of proton, me mass of electron and E/c^2 is the mass contribution due to the binding energy. the energy required to separate the electron is equal to the absolute value of the binding energy.

 

https://en.wikipedia.org/wiki/Binding_energy

Edited by andrewcellini

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.