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SashulF [63]
4 years ago
5

Any Help??? Dued before 2:30pm and it's 9:30am by me... so please take yuh time and ans.... jus ans 1 if you want... This is for

course marks.... I appreciate all efforts❤​

Physics
1 answer:
Kryger [21]4 years ago
5 0

Answer:

The methodology employed by Galileo contributed to the development of Physics by find moons of Jupiter. (I think)

sorry if it's wrong

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The rate constant for this first‑order reaction is 0.150 s−1 at 400 ∘C. A⟶products How long, in seconds, would it take for the c
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Answer : The time taken for the concentration will be, 7.98 seconds

Explanation :

First order reaction : A reaction is said to be of first order if the rate is depend on the concentration of the reactants, that means the rate depends linearly on one reactant concentration.

Expression for rate law for first order kinetics is given by :

k=\frac{2.303}{t}\log\frac{[A]_o}{[A]}

where,

k = rate constant  = 0.150s^{-1}

t = time taken for the process  = ?

[A]_o = initial concentration = 0.860 M

[A] = concentration after time 't' = 0.260 M

Now put all the given values in above equation, we get:

0.150s^{-1}=\frac{2.303}{t}\log\frac{0.860}{0.260}

t=7.98s

Therefore, the time taken for the concentration will be, 7.98 seconds

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A spacecraft with a proper length of 250 m passes by an observer on the earth. according to this observer, it takes 0.770 µs for
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If 1 second = 10000 μs
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