For question 1:
<span>25°C = 298 K
</span><span>ΔG = ΔH - T ΔS
</span>ΔH= ΔG + TΔS = −91368 + (298)(−284)=−91368-84632=-175730
<span>Therefore ΔH is approx - 176,000 J
</span>
For question 2:
The statement "A negative change in free energy, or −ΔG, represents a spontaneous reaction." is false
Answer:
the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object.
Explanation:
A nonmetal and a nonmetal will make molecular compounds like H2O and CO2
Answer:
No precipitate will form on mixing potassium bromide and lead acetate
Explanation:
Precipitation occurs when the ionic product of the ions exceeds the solubility product of the corresponding salt in the solution. If, this implies that the solution is over saturated and precipitation of salt will occur.Potassium bromide and lead acetate are strong electrolyte and thus completely dissociate in water.
The dissociation reaction is given as,Potassium bromide and lead acetate react to give lead bromide and potassium acetate.The concentration of lead ions is equal to the concentration of.The concentration of bromide ion is equal to the concentration of.Potassium acetate is soluble in aqueous solution. Lead bromide will precipitate out if the ionic product of lead ion and bromide ion exceeds the solubility product of .
The value of solubility product constant,, for is.The reaction quotient for is calculated as,Substitute the values.The value of the reaction quotient for is less than its solubility product, , therefore, precipitation of will not occur.
Answer:
They are fused into helium and create energy. But it takes 4
hydrogen atoms to make 1 atom of helium. The Hydrogen is first
converted to Deuterium (heavy hydrogen), and the two deuterium
atoms fuse to make the Helium atom. This process releases a lot of
energy, not the least because of the neutrons released. If this helps please rank Brainliest. Thanks!