Romance was a type of literature that was popular in the ____
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Beowulf is a national epic of ____
根据反应2S2O32- +I2=S4O62- +2I-构成原电池,测得该电池Eθ=0.455V, 已知φθ(I2/ I-)=0.535V ,则φθ(S4O62-/S2O32-)为( )V。
A. -0.080
B. 0.990
C. 0.080
D. -0.990
某温度T时,若电池反应1/2A+1/2B2= 1/2A2+ + B-的标准电动势为Eθ1,A2+ + 2B-= A+B2的标准电动势为Eθ2,则Eθ1与Eθ2的关系为( )。
A. Eθ1=1/2Eθ2
B. Eθ1=Eθ2
C. Eθ1=-1/2Eθ2
D. Eθ1=-Eθ2