I’m doing a project on renewable energy. There are 6 energy sources. Solar, wind, geothermal, hydroelectric, tidal, and biomass.
2 answers:
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Answer:
0.2 kcal/mol is the value of for this reaction.
Explanation:
The formula used for is:
where,
= Gibbs free energy for the reaction
= standard Gibbs free energy
R =Universal gas constant
T = temperature
Q = reaction quotient
k = Equilibrium constant
We have :
Reaction quotient of the reaction = Q = 46
Equilibrium constant of reaction = K = 35
Temperature of reaction = T = 25°C = 25 + 273 K = 298 K
R = 1.987 cal/K mol
1 cal = 0.001 kcal
0.2 kcal/mol is the value of for this reaction.
Answer:
11548KJ/kg
10641KJ/kg
Explanation:
Stagnation enthalpy:
given:
cp = 1.0 KJ/kg-K
T1 = 25 C +273 = 298 K
V1 = 150 m/s
Answer: 11548 KJ/kg
Using Heat balance for steady-state system:
Qin = 42 MW
W = -100 KW
V2 = 400 m/s
Using the above equation
Answer: 10641 KJ/kg
c) We use cp because the work is done per constant pressure on the system.