5.2.2 Archives - How Engineering Works

5.2.2

1. What are examples of allotropes of carbon?
2. What is allotropy?
3. What is polymorphism?
4. What are endothermic and exothermic phase changes?
5. What is sublimation point?
6. What is triple point?
7. What is a phase diagram?
8. What is a phase transition?
9. Why is this law important in chemistry?
10. Who proposed the Law of Constant Proportion?
11. What is the Law of Constant Proportion?
12. How does diffusion occur in solids?
13. What are some daily-life examples of diffusion?
14. What factors influence diffusion?
15. How does temperature affect surface tension?
16. Why do small insects walk on water?
17. What is surface tension?
18. What factors affect viscosity?
19. Why is honey more viscous than water?
20. What is viscosity?
21. What is meant by elastic limit?
22. What is elasticity?
23. What is liquefaction of gases?
24. What is critical pressure?
25. What is critical temperature?
26. Why does water boil at lower temperature on mountains?
27. How does pressure affect the boiling point of water?
28. What is atmospheric pressure?
29. How do gases exert pressure?
30. What is pressure?
31. What is heat transfer?
32. What is thermal equilibrium?
33. Why is anomalous expansion of water important in nature?
34. What is anomalous expansion of water?
35. What is thermal expansion?
36. Why do different substances heat up at different rates?
37. What is specific heat capacity?
38. What is heat capacity?
39. What are examples of heterogeneous mixtures?
40. What are examples of homogeneous mixtures?
41. What is a colloid?
42. What is a suspension?
43. What are solute and solvent?
44. What is a solution?
45. What is a heterogeneous mixture?
46. What is a homogeneous mixture?
47. What is a mixture?
48. What is a pure substance?
49. What are the properties of BEC?
50. What are the properties of plasma?
51. Who discovered Bose–Einstein condensates?
52. What is Bose–Einstein Condensate (BEC)?
53. Where is plasma found in nature?
54. What is plasma?
55. Why do gases diffuse rapidly according to kinetic theory?
56. Why do solids have fixed shape according to kinetic theory?
57. Why do gases exert pressure on the walls of the container?
58. How is kinetic energy related to temperature?
59. What is the kinetic theory of matter?
60. What factors affect density?
61. How do you calculate density?
62. Why does ice float on water?
63. How does density vary in solids, liquids, and gases?
64. What is specific gravity?
65. What is density?
66. Why does temperature remain constant during change of state?
67. What is latent heat of vaporization?
68. What is latent heat of fusion?
69. What is latent heat?
70. How is boiling different from evaporation?
71. What is boiling point?
72. What is melting point?
73. How does pressure affect states of matter?
74. How does temperature affect states of matter?
75. What factors affect the change of state?
76. What is deposition?
77. What is sublimation?
78. What is condensation?
79. What is boiling?
80. What is evaporation?
81. What is freezing/solidification?
82. What is melting?
83. What is interconversion of states of matter?
84. What is meant by shape and volume in different states of matter?
85. Why does diffusion occur faster in gases than in liquids?
86. What is diffusion?
87. Why do gases expand to fill the entire container?
88. What is compressibility? Which state is most compressible?
89. How do molecules arrange themselves in gases?
90. How do molecules arrange themselves in liquids?
91. How do molecules arrange themselves in solids?
92. What are chemical properties of matter?
93. What are physical properties of matter?
94. What is meant by “properties of matter”?
95. What are the characteristics of gases?
96. What are the characteristics of liquids?
97. What are the characteristics of solids?
98. What is the difference between solids, liquids, and gases?
99. What are the three primary states of matter?
100. What is matter?