The term corresponding to the given blank is to be stated. When the volume of a given solution is tripled (by adding water), the new concentration of solute is _____ the original concentration. Concept Introduction: The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element. The moles of any element is calculated by the formula, Moles = Mass g Molar mass Molarity is used to find out the concentration of solution. The molarity is calculated by the formula, Molarity = Number of moles of solute Volume of solution L .

Question

a) A favorable entropy change occurs when ΔS is positive. Does the order of the system increase or decrease when ΔS is positive? (b) A favorable enthalpy change occurs when ΔH is negative. Does the system absorb heat or give off heat when ΔH is negative? (c) Write the relation between ΔG, ΔH, and ΔS. Use the results of parts (a) and (b) to state whether ΔG must be positive or negative for a spontaneous change. For the reaction, ΔG is 59.0 kJ/mol at 298.15 K. Find the value of K for the reaction.

Answer 1

Question

Chapter 15, Problem 54QAP

Interpretation Introduction

Interpretation:

The term corresponding to the given blank is to be stated.

When the volume of a given solution is tripled (by adding water), the new concentration of solute is _____ the original concentration.

Concept Introduction:

The atomic mass of an element is defined as the sum of number of protons and number of neutrons. Molar mass of an element is determined from atomic mass of an element.

The moles of any element is calculated by the formula,

Moles=MassgMolar mass

Molarity is used to find out the concentration of solution.

The molarity is calculated by the formula,

Molarity=Number of moles of soluteVolume of solution L.

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