Question 4
Kinetic Theory and States of MatterUse the graph below to answer this question. A sample, X, solid at room temperature, was melted, heated to a temperature of 358 K and allowed to cool as shown in OPQR. The section OP suggests that X is in the
- A.liquid state
- B.solid/liquid state
- C.solid state
- D.gaseous state
Show the answer and explanation
Answer: A (liquid state)
Explanation
X was melted and heated to 358 K, so along OP the liquid is simply cooling down until it starts to freeze at P.