According to Graham's law of effusion, the ratio of the rates of effusion of two different molecules is equal to the square root of the reciprocal of the molar masses of the molecules. gas a is faster than B since it is lighter than B. Hence we expect a molar mass less than 17. we have the equation 1/0.68 =
where x is the molar mass of gas A. This is equal to 7.86 grams.
Answer:
Silver and copper
Explanation:
Siliver
Electrical conductivity=62000000(s/m)
Boiling point=2162
Melting point=961.78
Phase=solid
Copper
Electrical conductivity=59000000(s/m)
Boiling point =2927
Melting point=1084.62
Phase=soild
Metals like gold, silver and copper are drawn into thin wire and are used in an electric circuit because of their high electrical conductivity
Mostly Siliver and copper are used since using gold is much expensive.
Work is labor and energy is useful for it because you need energy to work unless you will be tired
<span>Gravel settled at the bottom and clay settled at the top.</span>