Answer:
It's not any kind of reaction. This is the decomposition/electrolysis reaction: 2H2O=2H2+O2 and this is the synthesis/combustion/oxidation reaction:2H2+O2=2H2O.
Explanation:
Answer:
Reactants are transformed into products
Explanation:
Chemical reactions are happening everywhere, it may be represented by the following equation:
A(aq) + B(s) ⇒ C(g) + D(l)
The left side represent the reactants that interact to get the products.
In the parenthetycal note is the state of the compound, in this case, aquose solution (aq), solid (s), gas (g), liquid (l)
Answer:
Viscosity of water decreases markedly with increasing temperature. When the viscosity decreases, the flow resistance decreases. So for the same driving force, that is the pressure drop per unit length, the water flow rate will be higher.
Hope this helps :)
Answer:
The mole fraction of hexane is 0.61
Explanation:
Raoult's law allows calculating the vapor pressure of a substance when it is forming part of an ideal solution, knowing its vapor pressure when it is pure (at the same temperature) and the composition of the ideal solution in terms of mole fraction.
Pi=xi*Pi°
where Pi is the partial pressure of component i in the solution, Pi ° is the vapor pressure of component i pure and xi is the mole fraction of component i in the liquid phase.
In a solution, once the components have reached chemical equilibrium, the total vapor pressure is:
Psolution=P1 + P2=x1*P1° +x2*P2°
In this case:
Psolution= xpentane*Ppentane° +xhexane*Phexane°
Being:
- Psolution= 258 torr
- xpentane + xhexane=1 ⇒ xpentane= 1 - xhexane
- Ppentane°= 425 torr
- xhexane= ?
- Phexane°= 151 torr
and replacing:
258 torr= (1-xhexane)* 425 torr + xhexane* 151 torr
you get:
258 torr= 425 torr - 425 torr*xhexane + xhexane* 151 torr
258 torr - 425 torr= - 425 torr*xhexane + xhexane* 151 torr
-167 torr= -274 torr*xhexane

xhexane= 0.61
<u><em>The mole fraction of hexane is 0.61</em></u>