Concept:Logical sequencing of sentences to form a coherent paragraph based on thematic flow.
Explanation:Sentence Q introduces the "triple point" temperature, linking to the scale mentioned in S1.
Sentence S follows, explaining that an arbitrary scale is used to indicate temperature.
Sentence R then describes heat flow and temperature difference.
Sentence P concludes by noting that temperature measures sensible heat, not energy quantity.
Thus, the correct order is Q, S, R, P.
Answer:Option A (QSRP)