Conceptual Exercises: Thermochemistry – Basic Concepts

Hi

The objectives of this conceptual exercise are

RELATIONSHIP BETWEEN HEAT AND ENTHALPY

  • Relate heat at constant pressure (Qp) and enthalpy
  • Relate heat at constant pressure (Qp) and heat at constant volume (Qv)
  • Relate (qualitatively) physical processes and heat

RELATE PROCESSES AND CHANGES IN ENTROPY

  • Given the physical states of reactants and products, determine (qualitatively) the sign of change in entropy

RELATE PROCESSES AND SPONTANEITY

  • After evaluating (qualitatively) the changes in enthalpy and entropy, stydy how spontaneity changes with temperature

Thermochemistry – Basic Concepts [Conceptual Questions – INDEX]

Qp and Qv

Rafa

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Conceptual Exercise: Chemical Equilibrium Concepts

Hi

The objectives of this conceptual exercise are

ESTABLISH RELATIONSHIPS BETWEEN KP, KC AND STOICHIOMETRIC COEFFICIENTS

  • Kp = Kc allows us to establish relationship between coefficients of reactants and products
  • The dimension (nits) of Kp or Kc allows us to establish a relationship between coefficients of reactants and products

 

INITIAL REACTION QUOTIENT ALLOWS US TO PREDICT THE EVOLUTION OF A SYSTEM TOWARDS THE EQUILIBRIUM

  • By comparing Q and Kc, we can predict if the system goes towards reactant or products in order to reach equilibrium

Chemical Equilibrium Concepts [Conceptual Exercises – INDEX]

Section A

Rafa

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Energy 01 Exam 2016-2017

Here you have a proposal for an exam about mechanical energy and power

Energy 01 Exam 2016-2017 [Physics & Chemistry Exams PAST EXAMS]

exam

Rafa

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EXAM 03: Solubility, Atom, PT, Bonds, Organic Chemistry

Here you have a proposal for an exam

EXAM 03: Solubility, Atom, PT, Bonds, Organic Chemistry [EXAMS – INDEX]

exam

Rafa

Posted in Atomic Models, Chemical Bonds, Covalent Bond, Exams, Organic Chemistry, Periodic Properties, Periodic Table | Tagged , , , , , | Leave a comment

Quantum Numbers – CMap

Here’s a resource about quantum numbers

Quantum Numbers – CMap [Atomic Model – PT DIARY] [Atomic Models and Periodic Table – INDEX]

Quantum Numbers - CMap

Rafa

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Work and Energy – Summary

By using histograms to represent mechanical energy, I have built a summary that relates energy, work and mechanical power.

Work and Energy – Summary [Energy 1 DIARY]

Work and Energy - Summary

Rafa

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Mechanical Power: Summary

This graphic summary shows two fundamental equations to determine mechanical power: P=W/t and P=F*v

Power: Concept and Exercises [Energy 1 DIARY]

Power- Concept and Exercises (1)

Rafa

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