Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2005ChemistryChemical EquilibriumActual

For the chemical equilibrium, CaCO _ 3(s) CaO _ (s) + CO _ 2(g) , H_r^ can be determined from which one of the following plots?

Correct answer

0

Step-by-step solution

For the reaction, K_p=p_ CO ₂ and K_c= [ CO ₂ ] ( [ CaCO ₃ ]=1 . and [ CaO ]=1 for solids ] According to Arrhenius equation we have K=A e^ - H_r^ / R T Taking logarithm, we have K_p= A- H_r^ R T(2.303) This is an equation of straight line. When K_p is plotted against 1 / T . we get a straight line. The intercept of this line = A , slope =- H_r^ / 2.303 R Knowing the value of slope from the plot and universal gas constant R, H_r^ can be calculated. (Equation of straight line : Y=m x+C . Here, aligned & K_p=- H_r^ 2.

Practice Chemical Equilibrium on Quantrex Academy →

More from Chemical Equilibrium

For which of the following solids does solubility decrease with an increase in temperature? 2026Given below are certain reactions. Identify the reaction for which K_p K_c : 2026Higher yield of NO in N ₂( ~g )+ O ₂( ~g ) 2 NO ( g ) can be obtained at [ H of the reaction =+180.7 ~kJ ~mol ⁻¹ ] A. higher temperature B. lower temperature C. higher concentratio 2025For the reaction A ( g ) 2 ~B ( ~g ) , the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500 , at 1000 K . [Given : R =0.0831 ~L 2025Consider the following reaction in a sealed vessel at equilibrium with concentrations of N ₂=3.0 10⁻³ M , O ₂=4.2 10⁻³ M and NO =2.8 10⁻³ M . 2 NO _ ( g ) N _ 2( ~g ) + O _ 2( ~g ) 2024For the reaction 2 ~A B + C , K _ C =4 10⁻³ . At a given time, the composition of reaction mixture is: [ A ]=[ B ]=[ C ]=2 10⁻³ M . Then, which of the following is correct? 2024For the reaction in equilibrium N ₂( ~g )+3 H ₂( ~g ) 2 NH ₃( ~g ), H =- Q Reaction is favoured in forward direction by: 2024In which of the following equilibria, K _ p and K _ c are NOT equal? 2024 Full Chemical Equilibrium list All NEET PYQs