Hydrogen gas kaise Banaye? | Science Experiment | CBSE Class 7 #shorts

Wave Mechanical Model OF Atom || De-Broglie's Hypothesis and de-Broglie's Wavelength || Davisson-Germer Experiment || Class Illustration with Short Tricks

Hydrogen gas in the atomic state is excited to an energy level such tht the electrostatic potential energy of H-atom becomes -1.7 eV . Now, a photoelectric plate having work function w=2.3 eV is exposed to the emission spectra of this gas. Assuming all the transitions to be possible, find the minimum de-Broglie wavelength of the ejected photoelectrons.

Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc, Following reaction takes place Zn+2HClrarrZnCl_(2)+H_(2) Calculate the voluem of hydrogen gas liberated at STP when 32.65 g of zinc reacts with HCl. 1 mol of a gas occupies 22.7 L volume at STP, atomic mass of Zn=65 .3u

A VI class student was given an experiment, to collect hydrogen gas from the reaction of calcium metal and cold water. He conducted the experiment and collected the hydrogen gas in boiling tube. Which process is involved in collection of hydrogen gas?

Kinetic Gas Equation | | Kinetic Energy OF Gas Sample | | Class Illustrations with Short Tricks

Calorific Value||Enthalpy OF Isomerisation|| Enthalpy OF Hydrogenation||Resonance energy|| Class Illustrations with Short Tricks on deltaHc||deltaHf

The diagram shows the apparatus set-up for an experiment. Gas jar ( A) contains a brown gas, nitrogren dioxide and gas jar ( B) contains hydrogen > The molecular masses of nitrogen dioxide and hydrogen are 46 and 2 respectively. Describe and explain the follwoing observations in the two gas jars as the experiment proceeds. The speed of the gas particles.

Calculation OF Entropy Change for Ideal Gas undergoing change in state|| Phase Change||Chemical Reactions|| Class Illustrations with Short Tricks