To determine change in Gibbs Free Energy, we use the equation
ΔG = ΔG° + RT ln Q
where ΔG is the change in free energy at temperature T
ΔG° is the free energy at standard temperature
R is the universal gas constant
T is the temperature of the system
Q is the reaction quotient
First, we determine the reaction quotient. It is the ratio of the concentration or partial pressure of the products and the reactants. For this case, we do as follow:
<span>P2(g) + 3 Cl2(g) -> 2 PCl3(g)
</span>
<span>Q = P(PCl3) ^2 / (P(P2)(P(Cl2 ^ 3)))
</span>Q = (0.65 atm)^2 / (1.5 atm) (1.6 atm)^3
Q = 0.0688
Substituting to the equation for free energy,
ΔG = ΔG° + RT ln Q
ΔG = -33300 J/mol + (8.314 J/mol-K)(298 K) ln 0.0688
ΔG = -39931.35 J/mol
Explanation:
oxidation is adding of oxygen and removal of hydrogen.
Reduction means removal of oxygen and addition of hydrogenm
Answer:
The answer to the question is
The resultant ground reaction force exerted by the floor on the volleyball player's shoes = 2088.06 N
Explanation:
To solve the queston we list out the variables thus
Mass of volley ball player = 80 kg
Normal force exerted on her shoes by the floor N =2000 N
friction force, f, exerted on her shoes backwards = 600 N
The resultant ground reactive force, R, is given by
R² = N² + f² = 2000² + 600² = 4000000 + 360000 = 4360000
Therefore R = √(4360000) = 2088.06 N
The direction of the force = atan (2000/600) = 73.3 ° clocwise or 106.699 ° counter clockwise
Answer:
The official measurement unit for energy is the Joule (J). Among the most common units measuring energy mention should be made of the kilowatt/hour (kWh), used especially for electric energy (in fact it is used to calculate electricity bills).
Answer:
False.
Explanation:
Fusion reactions are not yet commercially viable because they require extremely high energies to initiate and sustain a reaction.