• 2021-04-14
    【填空题】两敞口容器间用离心泵输水,已知转速为n1时,泵流量【图片】1=100l/s, 扬程He1=16 m; 转速为n2时,【图片】2 =120 l/s, 扬程He2=20m, 则两容器的垂直距离=_____ m
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    • 0

      下列各组量子数中,合理的一组是() A: n=4,l=2,m<sub>1</sub>=+3,m<sub>s</sub>= -1/2 B: n=4,l=5,m<sub>1</sub>=-1,m<sub>s</sub>= +1/2 C: n=3,l=3,m<sub>1</sub>=+1,m<sub>s</sub>=-1/2 D: n=3,l=1,m<sub>1</sub>=+1,m<sub>s</sub>=+1/2

    • 1

      下列量子数合理的是? n = 1,l = 0,m = 0|n = l,l = 1,m = 1|;n = 2,l = 0,m = 1 ‍|n = 2,l = 2,m = 2

    • 2

      在下列六组量子数中,正确的是‏① n=3,l= 1,m=-1 ② n = 3,l= 0,m = 0‏ ③ n = 2,l= 2 ,m=-1 ④ n = 2, l = 1 ,m = 0‏‍ ⑤ n = 2,l = 0,m =-1 ⑥ n= 2,l = 3 , m= 2 ‏ A: ①、③、⑤ B: ②、④、⑥ C: ①、②、③ D: ①、②、④

    • 3

      中国大学MOOC: 在下列六组量子数中,正确的是① n=3,l= 1,m=-1 ② n = 3,l= 0,m = 0 ③ n = 2,l= 2 ,m=-1 ④ n = 2, l = 1 ,m = 0 ⑤ n = 2,l = 0,m =-1 ⑥ n= 2,l = 3 , m= 2

    • 4

      下列各组量子数哪些是不合理的,为什么? (1) n=2,l=1,m=0; (2) n=2,l=2,m=-1; (3) n=3,l=0,m=0; (4) n=3,l=1,m=+1; (5) n=2,l=0,m=-1; (6) n=2,l=3,m=+2