Question

1. Count Rumford is perhaps best known for his observations on the nature of heat.
A. He undertook several experiments in order to test the theories of the origin of frictional heat.
B. According to the calorists, the heat was produced by the “caloric” squeezed out of he chips in the process of separating them from the larger pieces of metal.
C. Lavoisier had introduced the term “caloric” for the weightless substance heat, and had included it among the chemical elements, along with carbon, nitrogen and oxygen.
D. In the munitions factory in Munich, Rumford noticed that a considerable degree of heat developed in a brass gun while it was being bored.
6. Rumford could not believe that the big amount of heat generated could have come from the small amount of dust created.

• A. ABCD
• B. CBDA
• C. ADCB
• D. CDAB

Hint:

Historical science passages often follow this structure: personal observation → experiment → background theory → contradiction or insight.

Answer 1

The Correct Option is C

Sentence 1 introduces Rumford's study of heat.
(A) follows naturally — he conducted experiments on frictional heat.
(D) offers a real observation — heat generated during boring.
(C) sets the scientific background — "caloric" theory by Lavoisier.
(B) connects that theory to Rumford’s scenario — caloric being squeezed out of metal.
Sentence 6 finally expresses Rumford’s doubt about the caloric explanation.
Thus, the proper flow is:
1 — A — D — C — B — 6
ADCB