Calculate the threshold frequency of metal if the binding energy is 180.69KJ `mol ^(-1)` of electron .

Calculate the threshold frequency of metal if the binding energy is 180.69 kJ mol^(-1) of electron.

Calculate the threshold frequency of metal if the binding energy is 180.69 kJ mol^(-1) of electron.

At the threshold frequency, the velocity of the electrons is :

The threshold frequency V_0 for a metal is 7.0xx10^14 s^1 . Calculate the kinetic energy of an electron emitted when radiation of frequency v=1.0xx10^15s^(-1) hits the metal.

Thershold frequency, v_(0) is the minimum frequency which a photon must possess to eject an electron from a metal. It is different for different metals. When a photon of frequency 1.0xx10^(15)s^(-1) was allowed to hit a metal surface, an electron having 1.988x10^(-19)J of kinetic energy was emitted. Calculated the threshold frequency of this metal. equal to 600nm hits the metal surface.

Calculate heat of solution of NaCl from the following data Hydration energy of Na^(+) = -389kJ mol^(-1) Hydration energy of Cl^(-) = -382kJ mol^(-1) Lattice energy of NaCl = +776 kJ mol^(-)