Question

What volume of He is occupied by 2.50 mol of He at 25.0°C and a pressure of 0.980 atm?​

Answer 1

Answer: The volume occupied by He is 62.4 L

Step-by-step explanation:

According to ideal gas equation:

`PV=nRT`

P = pressure of gas = 0.980 atm

V = Volume of gas = ?

n = number of moles = 2.50 mol

R = gas constant =

T =temperature =
`25.0^0C=(25.0+273)K=298.0K`

`V=(nRT)/(P)`

`V=(2.50mol* 0.0821 Latm/K mol* 298.0K)/(0.980atm)=62.4L`

Thus the volume occupied by He is 62.4 L