Answer:
To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.
Explanation:
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In this case, according to the given information, it turns out possible for us use the thermodynamic definition of the Gibbs free energy and its relationship with Ksp as follows:
Thus, by combining them, we obtain:
Which is related to the general line equation:
Whereas:
It means that we answer to the blanks as follows:
To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.
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Lemon juice has a pH of around 2.0 while the pH of an apple is about 3.0 so it’s a 1.0 difference
Explanation:
Gay-Lussac's law states that if P=pressure and T=temperature, then P/T=P/T. Temperature must be in Kelvin, but pressure can be in any unit.
To convert Celsius into Kelvin, just add 273: 10+273=283K, and 28+273=301K.
So using the equation,
200kPa÷283=? kPa÷301
Solving this equation gives you about 212.72 kPa.
<span>Chemical reactions at the Earth’s surface </span>
Answer:
Soil weathering is the disintegration of certain rocks that contribute minerals or that their components are exposed to the environment in which it happens, soils that suffer this phenomenon in agriculture have better oxygenation and better water filtration, since the porosity of the earth increases due to the presence of rocky structures.
Explanation:
With which as a consequence some crops are not benefited from very humid lands or where these rocks are part of the soil environment in which they develop.
