The percent yield of the given reaction is to be determined if the actual yield of C 2 H 6 is 15 g and volumes of C 2 H 4 and H 2 are given as 1000 L/min and 1500 L/min respectively. Concept introduction: Number of moles of a substance, According to ideal gas equation, Number of moles = Pressure × Volume R × Temperature Mole ratios between the reactant and a product of a reaction are depends upon the coefficients of reactant and product in a balanced chemical equation. Limiting reagent : limiting reagent is a reactant, which consumes completely in the chemical reaction . The quantity of the product depends on this limiting reagent, it can be determined with the help of balanced chemical equation for the reaction. mass of a substance from its number of moles is, Number of moles × Molecular mass in grams = produced mass Percent yield of reaction is the ratio of mass of actual yield to the mass of theoretical yield.

Question

Consider the following Figure 2 and two atoms that are initially an infinite distance apart, x =00, at which point the potential energy of the system is U = 0. If they are brought together to x = x, the potential energy is related to the total force P by dU dx = P Given this, qualitatively sketch the variation of U with x. What happens at x=x? What is the significance of x = x, in terms of the potential energy? 0 P, Force 19 Attraction Total Repulsion x, Distance Figure 2. Variation with distance of the attractive, repulsive, and total forces between atoms. The slope dP/dx at the equilibrium spacing xe is proportional to the elastic modulus E; the stress σb, corresponding to the peak in total force, is the theoretical cohesive strength.

Answer 1

Question

Chapter 5, Problem 76E

Interpretation Introduction

Interpretation: The percent yield of the given reaction is to be determined if the actual yield of C2H6 is 15 g and volumes of C2H4 and H2 are given as 1000 L/min and 1500 L/min respectively.

Concept introduction:

Number of moles of a substance, According to ideal gas equation,

Number of moles = Pressure × VolumeR × Temperature

Mole ratios between the reactant and a product of a reaction are depends upon the coefficients of reactant and product in a balanced chemical equation.

Limiting reagent: limiting reagent is a reactant, which consumes completely in the chemical reaction. The quantity of the product depends on this limiting reagent, it can be determined with the help of balanced chemical equation for the reaction.

mass of a substance from its number of moles is,

Number of moles × Molecular mass in grams = produced mass

Percent yield of reaction is the ratio of mass of actual yield to the mass of theoretical yield.

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