Heat of combustion & formation
Heat of combustion & formation- Heat of combustion - "It is defined as the change in internal energy or…
Stoichiometry numerical -2
Stoichiometry numerical Stoichiometry numerical- Question 1) How many moles of N2 are needed to produce 8.2 moles of NH3 by…
Stoichiometry numerical -1
Stoichiometry numerical- Question- 23 gm of sodium reacts with water. Calculate (i) the weight of H2 liberated (ii) the moles…
Stoichiometry
Stoichiometry Stoichiometry- In a reaction, quantitative relationships among the reactants & products is called 'Stoichiometry'. Stoicheion means element & Metron…
Thermodynamics
Thermodynamics- Thermodynamics - 'The branch of science that deals with the study of different forms of energy & their interconversion…
Enthalpy change
Enthalpy change- Enthalpy change- It is defined as the change in enthalpy or change in internal energy or amount of…
Percentage composition
Percentage composition- Percentage composition gives the mass of each element expressed as the percentage of the total mass. It means…
Dalton atomic theory
Dalton atomic theory To provide justification to the laws of chemical combination, Dalton proposed atomic theory. The basic postulates of…
Unit conversion
Unit conversion- Unit conversion - One unit can be converted into another by conversion factor method or dimensional analysis. In…
Properties of matter
Properties of matter- Properties of matter- Each substance has unique properties, these are physical & chemical properties. Physical properties can…