初温度相同的铜和铝,其比热容之比是3:1,质量之比是2:3.吸收相等的热量后,升高的温度之比是

1个回答

  • Q'=Q"

    C'M'△t'=C"M"△t"

    △t':△t"=C'M':C"M"

    =C':M'*C"M"

    =3/1*2/3

    =2/1

    A

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