Required information Hydrogen bonding is responsible for many of the unusual properties of water. A simplified model represents a hydrogen bond as the electrostatic interaction of four point charges arranged along a straight line, as shown in the figure. Hydrogen bond OH H OH H -0.35e +0.35e -0.35e +0.35e 0.1 nm 0.17 nm 0.1 nm Estimate the energy that must be supplied to break the hydrogen bonds in 2.90 kg of liquid water. Assume that the number of hydrogen bonds is equal to the number of molecules. The molar mass of water is 0.0180 kg/mol. |MJ/kg

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### Required Information

Hydrogen bonding is responsible for many of the unusual properties of water. A simplified model represents a hydrogen bond as the electrostatic interaction of four point charges arranged along a straight line, as shown in the figure.

#### Diagram:
The diagram illustrates a hydrogen bond involving four point charges:
- Two hydroxide ions (OH) with a charge of \(-0.35e\).
- Two hydrogen ions (H) with a charge of \(+0.35e\).
- The charges are arranged linearly with distances of \(0.1 \, \text{nm}\) between each hydroxide ion and its adjacent hydrogen ion.
- The hydrogen bond itself spans \(0.17 \, \text{nm}\) between two opposite charges.

#### Problem Statement:
Estimate the energy that must be supplied to break the hydrogen bonds in \(2.90 \, \text{kg}\) of liquid water. Assume that the number of hydrogen bonds is equal to the number of molecules. The molar mass of water is \(0.0180 \, \text{kg/mol}\).

Energy to break bonds: [ ] MJ/kg
Transcribed Image Text:### Required Information Hydrogen bonding is responsible for many of the unusual properties of water. A simplified model represents a hydrogen bond as the electrostatic interaction of four point charges arranged along a straight line, as shown in the figure. #### Diagram: The diagram illustrates a hydrogen bond involving four point charges: - Two hydroxide ions (OH) with a charge of \(-0.35e\). - Two hydrogen ions (H) with a charge of \(+0.35e\). - The charges are arranged linearly with distances of \(0.1 \, \text{nm}\) between each hydroxide ion and its adjacent hydrogen ion. - The hydrogen bond itself spans \(0.17 \, \text{nm}\) between two opposite charges. #### Problem Statement: Estimate the energy that must be supplied to break the hydrogen bonds in \(2.90 \, \text{kg}\) of liquid water. Assume that the number of hydrogen bonds is equal to the number of molecules. The molar mass of water is \(0.0180 \, \text{kg/mol}\). Energy to break bonds: [ ] MJ/kg
**Required Information**

Hydrogen bonding is responsible for many of the unusual properties of water. A simplified model represents a hydrogen bond as the electrostatic interaction of four point charges arranged along a straight line, as shown in the figure.

**Diagram Explanation:**

- The diagram shows a hydrogen bond between two water molecules.
- There are four point charges:
  - Two negative charges labeled as OH with a charge of -0.35e.
  - Two positive charges labeled as H with a charge of +0.35e.
- The charges are arranged linearly: OH(-0.35e) — H(+0.35e) — H(+0.35e) — OH(-0.35e).
- The distances between charges are indicated:
  - 0.1 nm between OH and H on each side.
  - 0.17 nm between the two central H charges.

**Task:** 

Using this model, estimate the energy that must be supplied to break a single hydrogen bond.

**Energy Calculation:**

Enter the estimated energy value in the box provided (in joules).

[Input Box: ___ J]
Transcribed Image Text:**Required Information** Hydrogen bonding is responsible for many of the unusual properties of water. A simplified model represents a hydrogen bond as the electrostatic interaction of four point charges arranged along a straight line, as shown in the figure. **Diagram Explanation:** - The diagram shows a hydrogen bond between two water molecules. - There are four point charges: - Two negative charges labeled as OH with a charge of -0.35e. - Two positive charges labeled as H with a charge of +0.35e. - The charges are arranged linearly: OH(-0.35e) — H(+0.35e) — H(+0.35e) — OH(-0.35e). - The distances between charges are indicated: - 0.1 nm between OH and H on each side. - 0.17 nm between the two central H charges. **Task:** Using this model, estimate the energy that must be supplied to break a single hydrogen bond. **Energy Calculation:** Enter the estimated energy value in the box provided (in joules). [Input Box: ___ J]
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