Chemical Thermodynamics

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1. Which of these is not a feature of spontaneous reaction?

  • When spontaneous reaction proceeds - energy is released
  • Spontaneous reaction proceeds until equilibrium is reached
  • During Spontaneous process - the total energy increases
  • An e.g osmosis, expansion of compressed gas
  • The reversion of the sponstaneous process is unreal
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Other questions in this quiz

2. Which of these is NOT a thermodynamic law?

  • Energy can never be created nor destroyed (3rd Law)
  • The total energy of an isolated system remains the same (1st Law)
  • It is impossible to convert heat completely into different forms of energy (2nd Law)

3. Which of these do not affect reaction rate?

  • Physical state of compounds (are of contact between different phases)
  • Pressure
  • Conc of reactants (same phase)
  • Temperature

4. What is the pressure volume work done ON a system equation?

  • Change in U = Q + p(Change in V)
  • Change in U = Q + W
  • Change in U = Q - p(Change in V)
  • Change in U = W + p(Change in V)

5. Which of these does change in Gibbs energy NOT depend on?

  • On their chemical constitutions
  • The useful work
  • Change in entropy and enthalpy
  • Temperature and pressure
  • Concentration of reactants and products

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