How many years it take to convert 5microgram of x to 2.5microgram if k=0.005microgram/year where k-decay constant????
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Since it's a radioactive substance,
Hence it follow first order reaction mechanism.
Since, k = 0.693/t½
so t½ = 0.693/k
= 0.693/0.005
= 138.6 years.
Since conversion of 5 microgram of x to 2.5 microgram involves one half life (since value becomes half only once)
So, your answer is 1×t½ = 138.6 years.
sidmj30:
but I thought like using the exponential decay equation N(t)=Noe^-kt
Well why to choose a difficult way when you have got the easiest one by your side huh?
Are you a pcb/pcm student?
Pcm
Yeah so you would sure save your time in exam by choosing the easy way right? Rather than wasting your time by opting for a harder way.
But options were like 25,50,20,40
That's why I was wondering
Oh is it? What were the units of the options?
Obviously years
Hmm then idk.
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