Recent content by www123

Thanks for replies!

I assumed that the needed heat is equal to 334 kJ, because this would give me a phase change, but no temperature rise of the ice (or melted water from the ice).. i.e. I want to calculate the minimum amount of water needed to melt the ice and not more that would result in a temperature rise.. so...

how much water to melt ice at 0 degC with water at 5 degC ? If heat required to melt 1kg of ice is equal to: 334 kJ and water at 5 degC provides: 4.2KJ/kg/degC * 5degC = 21 kJ/kg, then the amount of water needed to melt ice is qual to: 334 kJ / 21 kJ/kg = 16 kg Is this correct...

thanks for the clarification.. ionization of a solid refers to the emission of charge carriers from the material.. and the energy needed for them to escape is the work function that is higher than the band gap and lower than the ionization energy for a single atom (because of collective...

Hello, I am new to the forum.. I hope someone can help me with this problem cause this has been killing me for a while now.. photo-generation is excitation of electrons into the conduction band when a photon interacts with an electron.. energy required for photo-generation is equal (or...