Constants in the Quantum World


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Baoying Li 1B
Posts: 113
Joined: Sat Aug 17, 2019 12:18 am

Constants in the Quantum World

Postby Baoying Li 1B » Wed Oct 09, 2019 8:08 pm

Hey, can anyone list all the constants of the formulas of quantum for future reference? Like the speed of light is c=3.00*10^8 m/s, what else? Do we need to remember all of them? I believe it will save most of us lots of time. Thank you.

xenamclean_1G
Posts: 51
Joined: Sat Jul 20, 2019 12:15 am

Re: Constants in the Quantum World

Postby xenamclean_1G » Wed Oct 09, 2019 8:17 pm

h= 6.626 x 10^-34 Js and R= 3.29 x 10^15 Hz are the only other ones I can think of.

205296774
Posts: 66
Joined: Thu Jul 25, 2019 12:15 am

Re: Constants in the Quantum World

Postby 205296774 » Wed Oct 09, 2019 8:19 pm

Sure! I think we only need to know these (on a test, they will be provided) -
Plank's Constant: h=6.62608 x 10^-34 J.s
Rydberg Constant: R=3.28984 x 10^15 Hz
Speed of Light: c=2.99792 x 10^8 m.s-1
Mass of electron: me=9.109383 x 10^-31 kg

AndreiRekesh1I
Posts: 52
Joined: Fri Aug 30, 2019 12:15 am

Re: Constants in the Quantum World

Postby AndreiRekesh1I » Wed Oct 09, 2019 8:21 pm

In my experience, remembering not only the values of constants but also the molar masses of common elements saves a lot of time.

ATingin_3I
Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

Re: Constants in the Quantum World

Postby ATingin_3I » Wed Oct 09, 2019 9:04 pm

When we are doing problems like these, is the mass of an electron always in terms of kg? Or do we have to convert them to g?

Emily_4B
Posts: 57
Joined: Wed Sep 18, 2019 12:21 am

Re: Constants in the Quantum World

Postby Emily_4B » Wed Oct 09, 2019 9:05 pm

so the constants will be given, but will the formulas that use the constants be given or do we have to memorize the different formulas?

Haley Dveirin 1E
Posts: 101
Joined: Sat Jul 20, 2019 12:17 am

Re: Constants in the Quantum World

Postby Haley Dveirin 1E » Wed Oct 09, 2019 9:20 pm

On the test we took the formulas were given but I would memorize them just in case and also understanding the formulas helps you understand the concepts. As for the constants- I think those will always be given.


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