What is the principal of calorimetry?

When two bodies at different temperatures are brought in contct, the basic principle of calorimetry (heat lost = heat gained) can not be applied if

What is the principal defect of Bohr atom model?

What are the principal characteristics of an ideal average?

What is the principal nitrogenous waste product in (i) fish and (ii) Birds?

Explain the principal of paper chromatography.

Which one is the principal cation in the plasma of blood ?

What are the two principal cation of our intracellular and extracellular body fluids?