To determine the condition that would result in a negative nitrogen balance within the human body. Concept introduction: Nitrogen balance is defined as the state of when the amount of nitrogen intake by the human body in form of proteins is equal to the amount of nitrogen expel out form the body as a waste product. The difference in the nitrogen intake and nitrogen output from the body result in nitrogen imbalance. There are mainly two types of nitrogen imbalances: 1. Positive nitrogen balance: It occurs when nitrogen intake exceeds nitrogen output. 2. Negative nitrogen balance: It occurs when nitrogen output exceeds nitrogen intake.

Question

Photochemical smog is formed in part by the action of light on nitrogen dioxide. The wavelength of radiation absorbed by NO2 in this reaction is 197 nm.(a) Draw the Lewis structure of NO2 and sketch its π molecular orbitals.(b) When 1.56 mJ of energy is absorbed by 3.0 L of air at 20 °C and 0.91 atm, all the NO2 molecules in this sample dissociate by the reaction shown. Assume that each absorbed photon leads to the dissociation (into NO and O) of one NO2 molecule. What is the proportion, in parts per million, of NO2 molecules in this sample? Assume that the sample behaves ideally.

Answer 1

Question

Chapter 15.2, Problem 3QQ

Interpretation Introduction

Interpretation: To determine the condition that would result in a negative nitrogen balance within the human body.

Concept introduction: Nitrogen balance is defined as the state of when the amount of nitrogen intake by the human body in form of proteins is equal to the amount of nitrogen expel out form the body as a waste product.

The difference in the nitrogen intake and nitrogen output from the body result in nitrogen imbalance. There are mainly two types of nitrogen imbalances:

1. Positive nitrogen balance: It occurs when nitrogen intake exceeds nitrogen output.

2. Negative nitrogen balance: It occurs when nitrogen output exceeds nitrogen intake.

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Photochemical smog is formed in part by the action of light on nitrogen dioxide. The wavelength of radiation absorbed by NO2 in this reaction is 197 nm.(a) Draw the Lewis structure of NO2 and sketch its π molecular orbitals.(b) When 1.56 mJ of energy is absorbed by 3.0 L of air at 20 °C and 0.91 atm, all the NO2 molecules in this sample dissociate by the reaction shown. Assume that each absorbed photon leads to the dissociation (into NO and O) of one NO2 molecule. What is the proportion, in parts per million, of NO2 molecules in this sample? Assume that the sample behaves ideally.

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