Answer:
a. T and P remain the same (T=298 K and P=1 bar)
b. 11.23J/K
Explanation:
a. Since the mixing process of an idea gas doesn't present a change in the enthalpy, we could state that no change in neither temperature and pressure are given.
b. It is not necessary to know enthalpy data, the following formula is enough to compute the entropy change:
Δ![S_{mix}=-n_{N_2}R ln(x_{N_2})-n_{O_2}R ln(x_{O_2})](https://tex.z-dn.net/?f=S_%7Bmix%7D%3D-n_%7BN_2%7DR%20ln%28x_%7BN_2%7D%29-n_%7BO_2%7DR%20ln%28x_%7BO_2%7D%29)
Thus, the molar fractions are equal to 0.5, and the result yields:
Δ![S_{mix}=-(1mol)[(8.314J/(mol*K)]ln(0.5)-(1mol)[(8.314J/(mol*K)]ln(0.5)](https://tex.z-dn.net/?f=S_%7Bmix%7D%3D-%281mol%29%5B%288.314J%2F%28mol%2AK%29%5Dln%280.5%29-%281mol%29%5B%288.314J%2F%28mol%2AK%29%5Dln%280.5%29)
Δ![S_{mix}=11.23J/K](https://tex.z-dn.net/?f=S_%7Bmix%7D%3D11.23J%2FK)
Best regards
Answer:
Explanation:
Since the transferred heat is equal to the change in the internal energy, the heat is proportional to the mass of the substance and the temperature change. The transferred heat also depends on the substance so that, for example, the heat necessary to raise the temperature is less for alcohol than for water. Hope that helps!:)
It is not sodium. If you drop hot molten sodium into water it flashes and violently reacts with water but does not quite explode like the molten sodium chloride. It most likely is not ... If you check the PH afterexplosion, water is still neutral PH.
BUT because sodium chloride is table salt. your answer is false!