a. Gas A has the lowest rate of diffusion
<h3>Further explanation</h3>
Given
The molar masses
Required
the lowest rate of diffusion
Solution
Graham's law: <em>the rate of effusion of a gas is inversely proportional to the square root of its molar masses or </em>
<em>the effusion rates of two gases = the square root of the inverse of their molar masses: </em>
So :
The greater the molar mass, the smaller the rate
So gas A has the lowest rate
When the compound is composed of two non-metals, the the bond that joins them together is called covlent bond. Otherwise, when the compound is composed of a metal and a non-metal then the bond existing between them is called ionic bond. Answer then to this problem is A. covalent bond
you can not answer this question without specifying the temperature and pressure of the copper
Answer:
108.3kPa
Explanation:
Given parameters:
Initial temperature = 76k
Initial pressure = 78.4kPa
Final temperature = 105k
Unknown:
Final or new pressure = ?
Solution:
To solve this problem, we apply the combined gas law:
= 
T1 = 76k
P1 = 78.4kPa
T2 = 105k
= 
P2 = 108.3atm
