When in any system at equilibrium state pressure, temperature and concentration is changed then the equilibria shifted to such a direction which neutralize the effect of change. This is known as [MP PMT/PET 1988; DPMT 1985]

Hess's law of constant heat summation

When in any system at equilibrium state pressure, temperature and conc

1.	When in any system at equilibrium state pressure, temperature and concentration is changed then the equilibria shifted to such a direction which neutralize the effect of change. This is known as [MP PMT/PET 1988; DPMT 1985]
A.	First law of thermodynamics
B.	Le-chatelier's principle
C.	Ostwald's rule
D.	Hess's law of constant heat summation
Answer» C. Ostwald's rule

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When in any system at equilibrium state pressure, temperature and concentration is changed then the equilibria shifted to such a direction which neutralize the effect of change. This is known as [MP PMT/PET 1988; DPMT 1985]

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