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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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

Answer from: bradleycawley02

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

Answer from: Quest

26.4 is about the right time

Answer from: Quest

Is a vector quantity that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

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