反应IO3-+I-+6H+=3I2+3H2O,反应的平衡常数为()(已知:Eθ(IO3-/I-)=1.20V,Eθ(I2/I-)=0.55V)
A: 2.5x10
B: 2.5x10
C: 5x10
D: 5x10
A: 2.5x10
B: 2.5x10
C: 5x10
D: 5x10
举一反三
- 反应IO3-+I-+6H+=3I2+3H2O,反应的平衡常数为(已知: (IO3-/I-)=1.20V, (I2/I-)=0.55V) A: 2.5×1056 B: 2.5×1055 C: 5×1056 D: 5×1055
- Public Sub Proc(a%( )) Static i% Do a(i) = a(i) + a(i + 1) i = i + 1 Loop While i < 2 End Sub Private Sub Command1_Click( ) Dim m%, i%, x%(10) For i = 0 To 4: x(i) = i + 1: Next i For i = 1 To 2: Call Proc(x): Next i For i = 0 To 4: Print x(i);: Next i End Sub A: 3 4 7 5 6 B: 3 5 7 4 5 C: 2 3 4 4 5 D: 4 5 6 7 8
- X的初始值是3,执行下面的程序段For I = 1 To 10 Step -2: x = x + I 3: Next I后,X的值为
- 一个三位数,若它的每个数字(即百位、十位、个位)的立方和等于该数,则该数称为水仙花数,显示水仙花数的程序是: A: for i in range(1,1000): x=i//100 y = i//10%10 z=i%10 if x**3+y**3+z**3 == i: print("水仙花数为:",i) B: for i in range(100,101): x=i//100 y = i//10%10 z=i%10 if x**3+y**3+z**3 == i: print("水仙花数为:",i) C: i=100 while i<=999: x=i//100 y = i//10%10 z=i%10 if x**3+y**3+z**3 == i: print("水仙花数为:",i) i++ D: for i in range(100,1000): x=i//100 y = i//10%10 z=i%10 if x**3+y**3+z**3 == i: print("水仙花数为:",i)
- 下列程序运行时输出的结果是 Option Base 1 Private Sub Form_Click() Dim x (10)As Integer,y(5)As Integer For i=1 to 10 x(i)=10-i+1 Next For i=1 to 5 y(i)=x(2*i-1)+x(2*i) Next For i=1 to 5 Print y(i) Next End Sub A.3 7 11 45 19 B.19 15 11 7 3 C.1 3 5 7 9 D.不确定的值