Cyclopropane, c3h6, is converted to its isomer propylene, ch2=chch3, when heated. the rate law is first order in cyclopropane, and the rate constant is 6.0 × 10−4/s at 500°c. if the initial concentration of cy- clopropane is 0.0226 mol/l, what is the concentration after 525 s?

0.011 M

Explanation:

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

where,

k = rate constant  =

t = time taken   = 525 sec

a = initial amount of the reactant  = 0.0226 mol/L

a - x = amount left = ?

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

Thus the concentration after 525 s is 0.011 mol/L.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.