How does ozones layer safe us from UV ray? The ozone layer in the stratosphere is to some extent beneficial to living system on earth. However, the ozone in the troposphere is harmful to man and materials. Ozone layer exists between 15 km in the stratosphere. 90% of ozone is present in this region. Solar … Read more
Why is fuel cell environment friendly? Fuel cell is a type of electrochemical cell which uses H2 gas as fuel to produce electrical electrical energy and heat. Fuel cell is merely produced using water vapour. So, it does not produce any environment pollutants. That is why fuel cell is considered eco-friendly.
What is called partial pressure? When a homogeneous mixture is made of two or more gass taking any of their proportion, each component of the mixture occupies whole volume and exerts a pressure which is called the partial pressure.
What is molar solution? A molar solution is defined as an aqueous solution that contains 1 mole (gram-molecular weight) of a compound dissolved in 1 litre of a solution.
Why RMS velocity is more appropriate in calculating the kinetic energy of gas? RMS velocity is more appropriate than mass velocity in calculating the kinetic energy of gas. This is because RMS velocity can be used calculate the kinetic energy of gas whereas mass velocity cannot be used to calculate kinetic energy directly. Moreover, kinetic … Read more
What do you mean by electrode potential? If a metal plate is immersed into the solution of the same metal electrode, there forms the pressure of the solution as well as osmotic pressure of the solution. These two pressures work in opposite direction and this is how equilibrium can be achieved. At equilibrium, difference of … Read more
What is meso-compound? A meso-compound is a compound that contains two or more chiral centre but is optically inactive having an internal plane of symmetry.
What is Redox reaction? A reaction in which one reactant undergoes oxidation while the other gets reduced during the course of the reaction is termed as redox reaction.