問題詳情
9.tWhich of the following statements about absolute pressure P, gauge pressure PG and atmospheric pressure P0is true?
(A)tP is the same as PG at 273 K.
(B)tP0 + PG is the absolute pressure P.
(C)tGauge pressure PG is always positive.
(D)tAbsolute pressure P is the atmospheric pressure P0 at 15°C.
(E) None of the above.
參考答案
答案：B
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中