## Half life

$\frac{d[R]}{dt}=-k; [R]=-kt + [R]_{0}; t_{\frac{1}{2}}=\frac{[R]_{0}}{2k}$

Niyanta Joshi 1F
Posts: 30
Joined: Thu Jul 13, 2017 3:00 am

### Half life

Can we use the half life formulas for zero order and second order in practical life examples?

Michelle Chernyak 1J
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

### Re: Half life

yes

Lily Guo 1D
Posts: 64
Joined: Fri Sep 29, 2017 7:03 am

### Re: Half life

Yes, just plug your given values into the equations and solve!

Sabah Islam 1G
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Joined: Sat Jul 22, 2017 3:01 am

### Re: Half life

Yes you can. You can use the half life formulas and also plug in your values for time and concentration into the zero order and second order equations as well.

Vincent Kim 2I
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Joined: Fri Sep 29, 2017 7:04 am
Been upvoted: 2 times

### Re: Half life

Yes, first order half lives apply to radioactive decay. Zero order and Second order half lives exist in real life with other processes

Priyanka Bhakta 1L
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Joined: Fri Sep 29, 2017 7:04 am

### Re: Half life

Also, be sure to use the appropriate half life equation based on the order!

Juanalv326
Posts: 49
Joined: Fri Sep 29, 2017 7:04 am

### Re: Half life

Yeah, unless otherwise given in another form

Christopher Anisi 2K
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

### Re: Half life

Yes, just be sure to include use the proper equation for the corresponding order.