1,Which of the following statement is(are) true?
A,Enthalpy is a state function.
B沒問題
C,A chemist takes the surroundings point of view when
determining the sign for work or heat.
D,The heat of reaction and change in enthalpy can always
be used interchangebly
請問什麼是state function? 是於路徑無關的變項嗎?那與其相對的是什麼?
C跟D是什麼意思呢?
2,Which of the following is a scalar?
A, force
B, Velocity
C, Acceleration
D, Distance
請問什麼是scalar?我問英文老師,他也不知道是什麼意思,偏偏我們學校沒物理老師
3,The resonance frequency of an LC circuit is
A, 1/2π(LC)^1/2 (這是一個分數,1是分子,其它都是分母)
B, 1/(ε0μ0)^1/2 (0在那兩個希腦字母的右下角)
C, (L^2+C^2)^1/2
D, 1/2π(L^2+C^2)^1/2 (這也是一個分數,只有1是分子,其它都是分母)
4,A sound wave can be described as a
A, Pressure wave
B, displacement wave
C, transverse wave
D, pressure wave and a displacement wave
可以解釋這四個選項分別是什麼意思嗎?
我物理幾乎沒看過英文的,所以有很多字可能我了解中文不了解英文,還希望
版上的朋友能不吝指教.謝謝
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