Other questions in this quiz

2. What is the difference between Macrostate and microstate of a system?

  • Macrostate is defined by parameters (eg.pressure, temp, number of phases) and microstate is defined by thermodynamics (the position and velocity of the particles and distribution of energy between them)
  • Macrostate is defined by thermodynamics (the position and velocity of the particles and distribution of energy between them) and microstate is defined by parameters (eg.pressure, temp, number of phases)

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

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

4. Which of these systems is incorrect?

  • Closed system - Matter and energy not exchanged with the surroundings
  • Open System - exchange of matter and energy with the surroundings
  • Isolated system - Matter and energy not exchanged with the surroundings

5. Which of these statements is not related to entropy

  • S= Kb ln W
  • Entropy increases until equilibrium is reached in an isolated system
  • Change in S> change in H / T
  • At equlibrium entropy always decreases in an isolated sytsem
  • An Isolated system spontaneously passes to the most probable state (a macroscopic state with the highest no. of microscopic state)
  • Entropy never decreases in an isolated system
  • Inequality of Clausius - (when energy changes form- some part is lost as entropy)

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