Question

Question 2

5 pts
The air inside a beach ball is at a temperature of 25°C a pressure of 1.0 atm. The ball
contains 0.85 mol of air, what is its volume?
21 L
27 L
0 171
06.11
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Answer 1

Answer: The volume of given ball is 21 L.

Step-by-step explanation:

Given : Pressure = 1.0 atm, no. of moles = 0.85 mol

Temperature =
`25^(o)C = (25 + 273) K = 298 K`

According to the ideal gas equation, formula used is as follows.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

`PV = nRT\\1.0 atm * V = 0.85 mol * 0.0821 Latm/mol K * 298 K\\V = 21 L`

Thus, we can conclude that the volume is 21 L.