kquintani0018
kquintani0018 kquintani0018
  • 21-02-2019
  • Chemistry
contestada

A person breathes 2.6 L of air at -11 C into her lungs, where it is warmed to 37 C. What is its new Volume?

Respuesta :

superman1987
superman1987 superman1987
  • 02-03-2019

Answer:

3.076 L.

Explanation:

  • The pressure is constant as it is the atmospheric pressure.
  • According to Charles’ law; at constant pressure, the volume  of a given quantity of a gas varies  directly with its temperature.

∴ V₁T₂ = V₂T₁.

V₁ = 2.6 L & T₁ = -11 °C + 273 = 262 K.

V₂ = ??? L & T₂ = 37 °C + 273 = 310 K.

∴ V₂ = (V₁T₂) / T₁ = (2.6 L)(310 K) / (262 K) = 3.076 L.

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