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The amount of heat absorbed by a body wh...

The amount of heat absorbed by a body while raising its temperature is given by the equation. `Q = mstheta` , here Q is the amount of heat, m is the mass of the body, s is the specific heat capacity and `theta` is the rise tmemperature. Dertermine the S.I. unit and C.G.S. unit of heat and specific heat capacity

Text Solution

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(i) S.I. unit ofheat is `1 J (= 1"kg" m^(2) s^(-2))` "and its CGS unit is" `1 "erg" (= 1 g cm^(2) s^(-2))`
(ii) erg `g^(-1)" "^(0)C^(-1),J kg^(-1) k^(-1)`
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The amount of heat absorbed by a body while raising its temperature is given by the equation. Q = ms theta , here Q is the amount of heat, m is the mass of the body, s is the specific heat capacity and theta is the rise in temperature. Determine the S.I. unit and C.G.S. units of the specific heat capacity, given that the C.G.S. unit of heat is erg and S.I. unit is joule.

Determine the unit of specific heat capacity.

Knowledge Check

  • The S.I unit of specific heat capacity is-

    A
    `J kg^(-1) k^(-1)`
    B
    `J kg^(-1)`
    C
    `J mol^(-1) k^(-1)`
    D
    None of these
  • The S.I. unit of specific heat capacity is

    A
    `JK^(-1)`
    B
    `J kg ^(-1)`
    C
    `" J mol "^(-1) K^(-1)`
    D
    `J kg ^(-1) K^(-1)`
  • SI unit of specific heat capacity is _____

    A
    `"J kg"^(-1) ""^(@)C^(-1)`
    B
    `"cal g"^(-1)""^(@)C^(-1)`
    C
    `"J kg"^(-1) K^(-1)`
    D
    All of the above
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