Question:

Three charged particles are collinear and are in equilibrium, then

Updated On: Aug 1, 2022
  • all the charged particles have the same polarity
  • the equilibrium is unstable
  • all the charged particles cannot have the same polarity
  • Both (b) and (c) are correct
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The Correct Option is D

Solution and Explanation

If a charged particle is in equilibrium under electrostatic force, then that particle never be in stable equilibrium. Hence option (b) is correct. Since, all charges are in equilibrium so, net torce an any one of charges are in equilibrium so, net force an any one of charges should be zero-for this two equal and opposite fores will act on any charges.
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Concepts Used:

Equilibrium Constant

The equilibrium constant may be defined as the ratio between the product of the molar concentrations of the products to that of the product of the molar concentrations of the reactants with each concentration term raised to a power equal to the stoichiometric coefficient in the balanced chemical reaction.

The equilibrium constant at a given temperature is the ratio of the rate constant of forwarding and backward reactions.

Equilibrium Constant Formula:

Kequ = kf/kb = [C]c [D]d/[A]a [B]b = Kc

where Kc, indicates the equilibrium constant measured in moles per litre.

For reactions involving gases: The equilibrium constant formula, in terms of partial pressure will be:

Kequ = kf/kb = [[pC]c [pD]d]/[[pA]a [pB]b] = Kp

Where Kp indicates the equilibrium constant formula in terms of partial pressures.

  • Larger Kc/Kp values indicate higher product formation and higher percentage conversion.
  • Lower Kc/Kp values indicate lower product formation and lower percentage conversion.

Medium Kc/Kp values indicate optimum product formation.

Units of Equilibrium Constant:

The equilibrium constant is the ratio of the concentrations raised to the stoichiometric coefficients. Therefore, the unit of the equilibrium constant = [Mole L-1]△n.

where, ∆n = sum of stoichiometric coefficients of products – a sum of stoichiometric coefficients of reactants.