1. Critical temp. for CO2 & CH4 are 31.1 •C & -81.9 •C respectively. Which of these has stronger intermolecular forces & why ?2. What is the energy in joules required to shift the electron of the hydrogen atom from the first bohr orbit to the fifth bohr orbit & what is the wavelength of the light emmited when the electron returns to the ground state? The ground state electron energy is -2.18 × 10-11 ergs. (v = 3 × 1010 cm/s h = 6.626 ×10-27 erg s )

Mainak Chakraborty , 14 Years ago

Grade Upto college level