Problem 17.5 After emptying her lungs, a person inhales 4.0 L of air at 2.0 ∘C...

Question

Question

Problem 17.5

After emptying her lungs, a person inhales 4.0 L of air at 2.0 ∘C and holds her breath.

Part A

How much does the volume of the air increase as it warms to her body temperature of 36 ∘C ?

Express your answer using two significant figures.

Answer 1

Answer #1

Given , V1 = 4 L , T1 = 2°C = 275 K , T2 = 36°C = 309°C

Since the pressure is constant ,

V1/T1 = V2/T2

4/275 = V2/309

V2 = 4*309/275

V2 = 4.495 L

Thus Increase in the volume = V2 - V1 = (4.495 - 4)L

= 0.495 L

Answer 2

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