/edexcel/questions","basePath":"/gcse/physics/edexcel/density-and-states-of-matter/questions","formulaUrl":null,"initialIndex":34,"initialQuestionWindow":[{"id":"869f6e53-66b4-4d84-935e-0d6649b8709e","revisionId":"005c7fc1-5d5a-4f7d-bead-2d0fc95677ab","questionNumber":null,"questionType":"LA","specification":"Table 1 gives information about the density of carbon dioxide in two different states of matter.\n\n### Table 1\n| State of carbon dioxide | Density ($\\\\text{g/cm}^3$) |\n| :--- | :--- |\n| Solid (dry ice) | 1.56 |\n| Gas | 0.00198 |","difficulty":4,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"bb769882-0478-4615-a7f7-b1b5a9dc82b2","label":null,"content":"Explain the significant difference between the density of solid carbon dioxide and gaseous carbon dioxide in terms of the spacing and arrangement of their particles.","markscheme":"- States that particles in solid carbon dioxide are closely packed in a fixed, regular structure, whereas particles in the gas are very far apart with large gaps/empty space between them M1\n- Explains that because particles in the solid are much closer together, there is a much greater mass (or a much greater number of particles) in a given volume of solid carbon dioxide than in the same volume of gaseous carbon dioxide A1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"87aa91a3-53ab-49d5-985b-a0d86e9f1e2c","revisionId":"d70df819-6390-4a63-99ca-b1456e61208f","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"b9fa1e2c-cee2-467e-bdfa-cdea93e52576","label":null,"content":"Describe the motion of the particles in liquid copper (at temperatures above $1085^\\circ\\text{C}$).","markscheme":"- Mentions that particles move randomly or in different directions B1\n- Mentions that particles can slide, flow, or move past one another B1","marks":2,"order":0,"markingRubric":null,"explanation":{"methods":[{"id":"particle_model","label":"Use the particle model","steps":[{"type":"text","order":0,"title":"Write both mark points","content":"Because the temperature is above copper’s melting point, it is a liquid. Write the two motion statements directly:\n\n**The particles move randomly in different directions.** **[B1]**\n\n**They can move or slide past one another, so the liquid can flow.** **[B1]**\n\nDo not use “close together” as one of the two points: the marks here are for random motion and for particles moving past each other.","highlights":[{"text":"Describe the motion of the particles in liquid copper (at temperatures above $1085^\\circ\\text{C}$).","location":"specification"}]}]}],"generatedAt":"2026-07-22T09:44:51.654Z","modelVersion":"gpt-5.6-terra+diagrams-1","explanationVersion":"v3"},"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"880e234d-f3cd-43b6-babc-08e9044c463b","revisionId":"a516b952-5baa-4ac3-a8f6-4022cc405bd9","questionNumber":null,"questionType":"LA","specification":"","difficulty":5,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"e3178580-dcba-4139-91c7-4a39bc5b3b5c","label":null,"content":"A chemist wants to measure the volume of an irregular specimen of lithium metal using a displacement can filled with mineral oil.\n\nThe density of the lithium is $0.53\\text{ g/cm}^3$.\n\nThe density of the mineral oil is $0.85\\text{ g/cm}^3$.\n\nExplain why this displacement method cannot be directly used to determine the volume of this specimen of lithium.","markscheme":"- States that the lithium will float because its density is lower than that of the mineral oil ($0.53\\text{ g/cm}^3 < 0.85\\text{ g/cm}^3$) M1\n- Explains that because it floats, it will not be fully submerged, meaning the volume of oil displaced is less than the total volume of the lithium specimen

Density and states of matter

Question 25

Density and states of matter Questions

Density and states of matter

Question 25

Density and states of matter Questions