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A person takes in a breath of 13C of air and holds it until it warms to 36.5C. The air has an initial volume of 0.24 L and a mass of 0.00077kg.

a. Determine the work done by the air on the lungs if the pressure remains constant at 1 atm.
Answer in units of J.

b. Find the change in the internal energy of the air. Treat the air as a monatomic gas.
Answer in units of J.

c. Calculate the energy added to the air by heat.
Answer in units of J.

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