Q.1
Systems in nature tend to undergo changes toward
  • lower energy and less disorder
  • lower energy and more disorder
  • higher energy and less disorder
  • higher energy and more disorder
Q.2
Is cellular respiration an Endothermic or an Exothermic reaction? [Hint: body is warm]
  • Endothermic
  • Exothermic
Q.3
The entropy will usually increase when
  • a molecule is broken into two or more smaller molecules
  • a reaction occurs that results in an increase in the number of moles of gas
  • a solid changes to a liquid
  • all of these
Q.4
When a system has a huge number of particles, higher entropy states are overwhelmingly more likely to occur.
  • True
  • False
Q.5
The reaction A + 2 B2 + C --> CAB4 has an enthalpy change of -kJ and a change in entropy of -60.8 J/K at°C. What is the free energy and spontaneity of the reaction?
  • -85.6 kJ, spontaneous
  • -18.3 kJ, not spontaneous
  • +18.3 kJ, spontaneous
  • +85.6 kJ, not spontaneous
Q.6
For the following reaction indicate if entropy is increased or decreased. 2 Li(s) +H2O(l) ---->2 LiOH(s) + H2(g) + 213.0 kJ (Kilojoules)
  • increase
  • decrease
Q.7
This will be the last question, hope you enjoyed it and keep safe always.
  • Yes I enjoyed it.
  • parang ewan po yung quiz, didn't enjoy it.
  • Okay naman po yung quiz. wag nalang pong uulitin.
  • All of above
Q.8
It is the amount of disorder in a system.
  • Enthalpy
  • Entropy
  • Entrolpy
  • Enthralpy
  • Maybe Entropy or Enthalpy, they are the same ya know.
Q.9
If Ice melts, its entropy increases.
  • Trulala
  • Falsemama
  • It will not change. So... none of the above.
Q.10
Entropy of Gases is greater than that of Solid.
  • Trulala
  • Falsemama
  • It will not change. So... none of the above.
Q.11
Entropy of Solid is greater than that of Gases.
  • Trulala
  • Falsemama
  • It will not change. So... none of the above.
Q.12
Which of the following is non-spontaneous?
  • Evaporating Water
  • Cooling down of hot water
  • Condensing Water Vapor
  • Solidifying of Magma
Q.13
Which of the following is a spontaneous process will give the lowest entropy after the process?
  • Evaporating Water
  • Cooling down of hot water
  • Condensing Water Vapor
  • Solidifying of Magma
Q.14
Which of the following is a spontaneous process will give the highest entropy after the process?
  • Evaporating Water
  • Cooling down of hot water
  • Condensing Water Vapor
  • Solidifying of Magma
Q.15
When gases are produced, Entropy is ____________.
  • Greater than zero
  • Lesser than zero
  • Equal to zero
  • Entropy wiill not be equal to zero, so its either of the two.
Q.16
When gases are absorbed, Entropy is ____________.
  • Greater than zero
  • Lesser than zero
  • Equal to zero
  • Entropy wiill not be equal to zero, so its either of the two.
Q.17
Which law of thermodynamics refers to the Entropy of the Universe?
  • Zeroth Law
  • First Law
  • Second Law
  • Third Law
  • Fourth Law (if ever there is, because I want to answer the most unreal choice)
Q.18
Entropy of Liquid is greater than that of Solid.
  • Trulala
  • Falsemama
  • It will not change. So... none of the above.
Q.19
Which of the reactions below has a negative ∆S?
  • CuCO3 (s) + 2HCl (aq) → CuCl2 (aq) + CO2 (g) + H2O (l)
  • C (s) + O2 (g) → CO2 (g)
  • CuO (s) + H2SO4 (aq) → CuSO4 (aq) + H2O (l)
  • BaCl2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2NaCl (aq)
Q.20
Which state of matter has the greatest motion and least orderly arrangement?
  • solid
  • liquid
  • gas
  • aqueous
0 h : 0 m : 1 s