求证等式(A<sub>1</sub>A<sub>2</sub>…A<sub>N</sub>)<sup>-1</sup>=A<sub>N</sub><sup>-1</sup>…A<sub>2</sub><sup>-1</sup>A<sub>1</sub><sup>-1</sup>
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A、△H<sub>1sub>+ △H<sub>2sub>+△H<sub>3sub> =△H<sub>4sub> B、△H<sub>1sub>+ △H<sub>2sub> = △H<sub>3sub> +△H<sub>4sub> C、(△H<sub>1sub>+ △H<sub>2sub>)-(△H<sub>3sub> +△H<sub>4sub>)=△H<sub>5sub> D、△H<sub>1sub>+△H<sub>2sub>+△H<sub>3sub>+△H<sub>4sub> =△H<sub>5sub>
A、对于体积V内N个电子的自由电子气体,求证:
(1)电子气体的压强p=(2/3)×(U<sub>0sub>/V)其中U<sub>0sub>为电子气体的基态能量。
(2)体弹性模量为10U<sub>0sub>/9V。
A、△Hθ<sub>1sub>=△Hθ<sub>2sub> B、△Hθ<sub>1sub>=2△Hθ<sub>2sub> C、2△Hθ<sub>1sub>=△Hθ<sub>2sub> D、△Hθ<sub>1sub>与△Hθ<sub>2sub>无关
A、(0.5)<sub>8sub>=(0.C)<sub>16sub> B、(13)<sub>10sub>=(1101)<sub>2sub> C、(0.625)<sub>10sub>=(0.5)<sub>8sub> D、(653<sub>8sub>)=(1AB)<sub>16sub>
A、E<sub>1sub>〈E<sub>2sub>,A<sub>1sub>〈A<sub>2sub> B、E<sub>1sub>〈E<sub>2sub>,A<sub>1sub>〉A<sub>2sub> C、E<sub>1sub>〉E<sub>2sub>,A<sub>1sub>〈A<sub>2sub> D、E<sub>1sub>〉E<sub>2sub>,A<sub>1sub>〉A<sub>2sub>
A、E<sub>1sub>
A、e<sub>1sub>c<sub>1sub>F<sub>1sub>=e<sub>2sub>c<sub>2sub>F<sub>2sub> B、c<sub>1sub>F<sub>1sub>=c<sub>2sub>F<sub>2sub> C、c<sub>1sub>/c<sub>2sub>=F<sub>2sub>/F<sub>1sub> D、c<sub>1sub>/c<sub>2sub>=F<sub>1sub>/F<sub>2sub>
A、△H<sub>1sub>〈△H<sub>2sub>,W<sub>1sub>〉W<sub>2sub> B、△H<sub>1sub>〉△H<sub>2sub>,W<sub>1sub>〈W<sub>2sub> C、△H<sub>1sub>〈△H<sub>2sub>,W<sub>1sub>〈W<sub>2sub> D、△H<sub>1sub>〉△H<sub>2sub>,W<sub>1sub>〉W<sub>2sub>
A、△H<sub>1sub>〉△H<sub>2sub>,W<sub>1sub>〈W<sub>2sub> B、△H<sub>1sub>〈△H<sub>2sub>,W<sub>1sub>〉W<sub>2sub> C、△H<sub>1sub>=△H<sub>2sub>,W<sub>1sub>〈W<sub>2sub> D、△H<sub>1sub>=△H<sub>2sub>,W<sub>1sub>〉W<sub>2sub>
A、S1∩(S2∩S3)≡(S1∩S2)∩S3 B、π<sub>Asub>(S1∩S2)≡π<sub>Asub>(S1)∩π<sub>Asub>(S2) C、σ<sub>Fsub>(S1∩S2)≡σ<sub>Fsub>(S1)∩σ<sub>Fsub>(S2) D、π<sub>Asub>(S1∪S2)≡π<sub>Asub>(S1)∪π<sub>Asub>(S2)