Answer to Question #334150 in Chemistry for shimmy

Question

2.  A scuba diver needs a diving tank in order to provide breathing gas while he is under water. Calculate the pressure needed for 6.50 litres of gas at 1.02 atmospheric pressure to be reduced in a 3.25 litres cylinder.

Answer 1

P₁ = 1.02 atm

V₁ = 6.50 L

T₁ = T₂ = constant

P₂ = ???

V₂ = 3.25 L

Solution:

Since the temperature and amount of gas remain unchanged, Boyle's law can be used.

Boyle's gas law can be expressed as: P₁V₁ = P₂V₂

To find the pressure, solve the equation for P₂:

P₂ = P₁V₁ / V₂

P₂ = (1.02 atm × 6.50 L) / (3.25 L) = 2.04 atm

P₂ = 2.04 atm

Answer: 2.04 atm