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The particle model used to describe solids, liquids and gases has some limitations - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2020 - Paper 1
Question 6
The particle model used to describe solids, liquids and gases has some limitations. Which of the following is not a limitation of the particle model? A The forces of... show full transcript
Worked Solution & Example Answer:The particle model used to describe solids, liquids and gases has some limitations - OCR Gateway - GCSE Chemistry: Combined Science - Question 6 - 2020 - Paper 1
Step 1
Which of the following is not a limitation of the particle model?
Answer
To determine which option is not a limitation of the particle model, we need to analyze each choice:
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A: The forces of attraction between particles. This is indeed a limitation, as the particle model simplifies the interaction between particles, often neglecting these forces.
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B: The number of the particles. This refers to the existence of a large number of particles in any substance. The particle model does not specify the total number of particles, making this option not a limitation.
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C: The size of the particles. Similar to forces of attraction, the particle model generally assumes particles are point-like without considering their sizes accurately, which is a limitation.
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D: The space between the particles. While the model does consider the spaces, it often oversimplifies this aspect depending on the phase of the matter which can be viewed as a limitation as well.
Thus, the correct answer is B: The number of the particles.