The graph shows the heating curve of element Y.
Describe the graph in terms of state of matter, particle arrangements and changes in energy.
From t0 – t1
1 In liquid state
2 Particles are arranged closed to each other but not closely packed together
3 Particles are not arranged in order
4 Energy increases
From t1 – t2
5 In liquid and gas state
6 Some particles are close to each but some are far apart
7 Particles are not arranged in order
8 Energy remains constant//does not increase
From t2 – t3
9 In gas state
10 particles are far apart from each other
11 Particles are not arranged in order
12 Energy increase
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