Answer:
0.47V
Explanation:
2 Al(s) + 3 Mn2+(aq) → 2 Al3+(aq) + 3 Mn(s)
n= 6 ( six moles of electrons were transferred)
Q= [Red]/[Ox] but [Red]= 1.5M, [Ox] = 0.12 M
Q= 1.5/0.12= 12.5
From Nernst equation:
E= E°cell- 0.0592/n log Q
E°cell= 0.48 V
E= 0.48 - 0.0592/6 log (12.5)
E= 0.47V
Answer is: <span>B) inner core.
</span>The Sun interior is divided into three regions: the inner core<span>, the </span>radiative zone<span> and the </span><span>convection zone.
</span><span>The inner core is the central region of the Sun and all solar energy is produced in the core by nuclear fusion.
</span>Radiative zone is a<span>round the inner core and in this area</span><span> energy is transported by </span>radiation.
The convection zone is the outer-most layer of the interior and in this area energy is transported by convection.
You would divide the number of atoms by Avogadro's number [6.02x10^23]
The average speed : 3.07 m/s
<h3>Further explanation</h3>
Given
d1 = 2 km
t1 = 9 min
d2 = 1.5 km
t2 = 10 min
Required
The average speed
Solution
Average speed = total distance : total time
total distance :
= d1+d2
= 2+1.5
=3.5 km
total time :
= t1+t2
= 9 min + 10 min
= 19 min
Average speed :
= 3.5 km : 19 min
= 0.184 km/min
= 3.07 m/s
