Set E Phase Change Diagrams The diagram below shows the
Last updated: 6/15/2023
Set E Phase Change Diagrams The diagram below shows the heating of a substance starting with the substance below its melting point KE Temperature C Temperature C 200 180 140 120 100 80 100 90 80 40 70 60 50 40 39 What is the boiling point of the substance 80 C 40 At what temperature are solid and liquid exist at 41 At which segment or segments is the substance average kinetic energy increasing AB CD EF 42 At which segment or segments is the substance exists in two phases BC DE 43 Potential energy of the substance remains constant during which segment or segments ABCDEF 44 What is the total length of the time that the substance exists only as a liquid 12 9 is 3 min 45 What is the total length of time that the substance undergoes melting 9 3 6min 48 Is the diagram a heating curve for water or for a different substance Explain your answer No because the melting point boiling point are not same The diagram below shows the cooling of a substance starting with the substance at a temperature above its boiling point The substance is losing heat at a rate of 155 Joules per minute Melting BS1 PE Boiling 179 PE KE S 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Time minutes B 0 2 4 6 8 10 12 14 16 E D 49 What is boiling point of the substance 50 What is the freezing point of the substance 51 What is the melting point of the substance 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Time minutes 52 Which segment or segments represents a time when the substance is going through a phase change 53 Which segment or segments represents a time when the substance is in one phase 54 What is the phase or phases of the substance during segment C 55 What is the total length of time it took for the substance to change from liquid to solid 56 Describe the change in kinetic energy of the substance during segment A 57 How much heat is lost by the substance to completely change from gas to liquid 58 How much heat is lost by the substance to completely change from liquid to solid