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Physics, 22.06.2019 21:00 tobyfoerst

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

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Answer from: ili28

As we know that with respect to oxygen atom taken as reference the product of atomic mass and specific heat of a metal will remain constant.

this product is equal to 0.38

so here we will say that let atomic mass of the metal is M

so with respect to oxygen atom its mass is given as

m = \frac{M}{16}

now we will have

\frac{M}{16} \times 0.850 = 0.38

now we will have

M = 7

so atomic mass of the metal is 7 g/mol

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Answer from: isabel2417

Its atomic weight is 0.00753N

Explanation:

Dulong and Petit law states that atoms of all elements have the same heat capacity so their specific heat is inversely related to their respective atomic weights.

       i.e      S_{H}\alpha \frac{1}{A_{w} }

where S_{H} is the specific heat of the object and A_{w} is the atomic weight of the object.

       ⇒ S_{H} × A_{w} = constant = 6.4

S_{H} = 0.850J/g°C = 850 J/KgK

             A_{w} = \frac{6.4}{850}

                   = 0.00753N

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Answer from: Quest

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

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Answer from: Quest

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

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