Proton, Neutron, and Electron. the Proton has a positive charge, and the Neutron is neutral. The electron has a negative
Because Nacl is an ionic compound and ionic compound have strong force of attraction between their atoms.
Nuclear bombs are kinetic energy
Answer:
![\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}](https://tex.z-dn.net/?f=%5CDelta%20S%3D1.8x10%5E%7B-3%7D%5Cfrac%7BkJ%7D%7BK%7D%3D1.8%5Cfrac%7BJ%7D%7BK%7D)
Explanation:
Hello.
In this case, given the heat of fusion of THF to be 8.5 kJ/mol and freezing at -108.5 °C, for the required mass of 5.9 g, we can compute the entropy as:
![\Delta S=\frac{n*\Delta H}{T}](https://tex.z-dn.net/?f=%5CDelta%20S%3D%5Cfrac%7Bn%2A%5CDelta%20H%7D%7BT%7D)
Whereas n accounts for the moles which are computed below:
![n=5.9g*\frac{1mol}{72g} =0.082mol](https://tex.z-dn.net/?f=n%3D5.9g%2A%5Cfrac%7B1mol%7D%7B72g%7D%20%3D0.082mol)
Thus, the entropy turns out:
![\Delta S=\frac{0.0819mol*8.5 kJ/mol}{(-108.5+273.15)K}\\\\\Delta S=1.8x10^{-3}\frac{kJ}{K}=1.8\frac{J}{K}](https://tex.z-dn.net/?f=%5CDelta%20S%3D%5Cfrac%7B0.0819mol%2A8.5%20kJ%2Fmol%7D%7B%28-108.5%2B273.15%29K%7D%5C%5C%5C%5C%5CDelta%20S%3D1.8x10%5E%7B-3%7D%5Cfrac%7BkJ%7D%7BK%7D%3D1.8%5Cfrac%7BJ%7D%7BK%7D)
Best regards.
Answer:they run multiple tests to make sure it is a fact that it is right
Explanation: