試題詳解

14. Which of the following statements about the heats of combustion of acetylene, ethene, and ethane is   incorrect  ?
(A) Acetylene is the best high-temperature flame.
(B) Ethene produced the most heat per mole of gas consumed.
(C) Acetylene produced the most heat per mole of products formed.
(D) The oxyacetylene flame reaches temperatures as high as 2800 ℃.
(E) Acetylene release the most heat per mole of gas consumed.