Question 1

Water activity of cookies will be altered when a fat replacer is added as an
ingredient.

Accepted Answer

A) True 
 B)False  True

Question 2

Increasing oatmeal in boiling water will cause?

Accepted Answer

A)  Foaming 
B)  A decrease in boiling temperature 
C)  An increase in boiling temperature 
D)  Almost no change in boiling temperature 
E)  Crystallization. 
A)  Foaming 
B)  A decrease in boiling temperature 
C)  An increase in boiling temperature 
D)  Almost no change in boiling temperature 
E)  Crystallization. D

Question 3

Water contracts as it cools to 4°C and then expands a little as it is cooled to 0°C.

Accepted Answer

A) True 
 B)False  True

Question 4

Sugar and salt have the same impact on the temperature of boiling.

Accepted Answer

A) True 
 B)False

Question 5

As elevation increases, the boiling point of water increases.

Accepted Answer

A) True 
 B)False

Question 6

. In Johnson City, Tennessee, the elevation is 1700 feet. Explain that altitude's effect on the boiling point of water.

Accepted Answer

[At sea level, water boils at 100oC. The

Question 7

In lab this week, you will be conducting an experiment on the effect of the form of sweetener on fruit texture with the objective measurement of cooking time. The heavy syrup variation is expected to cook in the shortest time, followed by the thin syrup variation and then the control (no sugar). Using the terms nonvolatile, non- ionizing solute, explain these results. Then imagine that salt was substituted for sugar, and, using the term nonvolatile, ionizing solute, explain these results.

Accepted Answer

[Sugar is a nonvolatile (does not form a

Question 8

What happens when some water is added to plain gelatin?

Accepted Answer

A)  Flows freely 
B)  Melts the gelatin 
C)  Boils 
D)  Becomes bound and loses its flow properties 
E)  None of these. 
A)  Flows freely 
B)  Melts the gelatin 
C)  Boils 
D)  Becomes bound and loses its flow properties 
E)  None of these.

Question 9

Altitude alters the boiling point because of a change in which of the followihg?

Accepted Answer

A)  Ionization 
B)  Electrical repulsion 
C)  Vapor pressure 
D)  Atmospheric pressure 
E)  None of these. 
A)  Ionization 
B)  Electrical repulsion 
C)  Vapor pressure 
D)  Atmospheric pressure 
E)  None of these.

Question 10

Water consists of two hydrogen atoms and one  	________ 	.  Each water molecule can be connected to four adjacent water molecules by weak  _______	 bonding.
Water can exist in three states:  solid, liquid, and gas.  In the solid state, the molecules
slow down and associate in precise arrangements called  ______	.  In the_______ state, molecules have kinetic energy and escape from the surface as____________	.

Accepted Answer

can be connected to four adjacent water

Question 11

Explain why a steam burn is so painful.

Accepted Answer

[A steam burn occurs when water in the f

Question 12

Describe the water molecule, explaining hydrogen bonding.

Accepted Answer

[A water molecule is made up of two hydr

Question 13

A pressure cooker can be used to?

Accepted Answer

A)  Increase atmospheric pressure and raise the temperature of boiling wate 
B)  Decrease atmospheric pressure and raise the temperature of boiling water 
C)  Increase vapor pressure and raise the temperature of boiling water 
D)  Decrease vapor pressure and raise the temperature of boiling water 
E)  None of these. 
A)  Increase atmospheric pressure and raise the temperature of boiling wate 
B)  Decrease atmospheric pressure and raise the temperature of boiling water 
C)  Increase vapor pressure and raise the temperature of boiling water 
D)  Decrease vapor pressure and raise the temperature of boiling water 
E)  None of these.

Question 14

Boiled potatoes cook more slowly in the mountains than at sea level because of a
decrease in atmospheric pressure.

Accepted Answer

A) True 
 B)False

Question 15

The energy required for the change in state between water and ice to occur is called ?

Accepted Answer

A)  Heat of vaporization 
B)  Energy ratio 
C)  Heat of fusion 
D)  Water/ice ratio 
E)  None of these. 
A)  Heat of vaporization 
B)  Energy ratio 
C)  Heat of fusion 
D)  Water/ice ratio 
E)  None of these.

Question 16

Which of the following agencies are responsible for the safety of our water supply at the federal level?

Accepted Answer

A)  FDA and USDA 
B)  Department of Homeland Security and the Environmental Protection Agency 
C)  Bureau of Land Management and the WPA 
D)  Department of Health and Human Services only 
E)  none of these. 
A)  FDA and USDA 
B)  Department of Homeland Security and the Environmental Protection Agency 
C)  Bureau of Land Management and the WPA 
D)  Department of Health and Human Services only 
E)  none of these.

Question 17

A soft drink machine is outside. One winter day, two students buy soft drinks. One buys a Coke, which is fine. The other student buys a Diet Coke. It is partially frozen. Explain why this occurred.

Accepted Answer

[The Coke was full of sugar, which lower

Question 18

Distinguish between:

Accepted Answer

Heat of fusion and heat of vaporization

Question 19

For water to be transformed into ice, energy (approximately 80 calories per gram
of water) must be absorbed.

Accepted Answer

A) True 
 B)False

Question 20

The energy required to heat water from 0°C to 100°C is less than the energy
needed to transform ice to water at 0°C.

Accepted Answer

A) True 
 B)False

Water activity of cookies will be altered when a fat replacer is added as an ingredient.

Increasing oatmeal in boiling water will cause?

Water contracts as it cools to 4°C and then expands a little as it is cooled to 0°C.

Sugar and salt have the same impact on the temperature of boiling.

As elevation increases, the boiling point of water increases.

. In Johnson City, Tennessee, the elevation is 1700 feet. Explain that altitude's effect on the boiling point of water.

What happens when some water is added to plain gelatin?

Altitude alters the boiling point because of a change in which of the followihg?

Explain why a steam burn is so painful.

Describe the water molecule, explaining hydrogen bonding.

A pressure cooker can be used to?

Boiled potatoes cook more slowly in the mountains than at sea level because of a decrease in atmospheric pressure.

The energy required for the change in state between water and ice to occur is called ?

Which of the following agencies are responsible for the safety of our water supply at the federal level?

A soft drink machine is outside. One winter day, two students buy soft drinks. One buys a Coke, which is fine. The other student buys a Diet Coke. It is partially frozen. Explain why this occurred.

Distinguish between:

For water to be transformed into ice, energy (approximately 80 calories per gram of water) must be absorbed.

The energy required to heat water from 0°C to 100°C is less than the energy needed to transform ice to water at 0°C.

Todays Food Scene

Physical Aspects of Food Preparation

Overview of Carbohydrates

Monosaccharides, Disaccharides, and Sweeteners

Starch

Vegetables and Fruit

Overview of Fats and Oils

Fats and Oils in Food Products

Overview of Proteins

Milk and Milk Products

Meat, Fish, and Poultry

Eggs

Dimensions of Baking

Baking Applications

Food Safety: Concerns and Controls

Food Preservation

Food Additives

The Research Process

Sensory Evaluation

Objective Evaluation

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Exam 2: Water

Water activity of cookies will be altered when a fat replacer is added as an ingredient.

Increasing oatmeal in boiling water will cause?

Water contracts as it cools to 4°C and then expands a little as it is cooled to 0°C.

Sugar and salt have the same impact on the temperature of boiling.

As elevation increases, the boiling point of water increases.

. In Johnson City, Tennessee, the elevation is 1700 feet. Explain that altitude's effect on the boiling point of water.

What happens when some water is added to plain gelatin?

Altitude alters the boiling point because of a change in which of the followihg?

Explain why a steam burn is so painful.

Describe the water molecule, explaining hydrogen bonding.

A pressure cooker can be used to?

Boiled potatoes cook more slowly in the mountains than at sea level because of a decrease in atmospheric pressure.

The energy required for the change in state between water and ice to occur is called ?

Which of the following agencies are responsible for the safety of our water supply at the federal level?

A soft drink machine is outside. One winter day, two students buy soft drinks. One buys a Coke, which is fine. The other student buys a Diet Coke. It is partially frozen. Explain why this occurred.

Distinguish between:

For water to be transformed into ice, energy (approximately 80 calories per gram of water) must be absorbed.

The energy required to heat water from 0°C to 100°C is less than the energy needed to transform ice to water at 0°C.

Todays Food Scene

Physical Aspects of Food Preparation

Overview of Carbohydrates

Monosaccharides, Disaccharides, and Sweeteners

Starch

Vegetables and Fruit

Overview of Fats and Oils

Fats and Oils in Food Products

Overview of Proteins

Milk and Milk Products

Meat, Fish, and Poultry

Eggs

Dimensions of Baking

Baking Applications

Food Safety: Concerns and Controls

Food Preservation

Food Additives

The Research Process

Sensory Evaluation

Objective Evaluation

Filters