Unit 3 AOS 1 Quiz 4A

What is the specific heat capacity of water in J/g°C?

• 2.1 J/g°C

• 4.18 J/g°C

• 3.5 J/g°C

• 1.0 J/g°C

Which of the following is a principle of solution calorimetry?

• Ignoring heat loss

• Determining the calibration factor

• Using a constant temperature

• Avoiding temperature-time graphs

In solution calorimetry, what is the purpose of analysing temperature-time graphs?

• To determine the mass of the solution

• To calculate the specific heat capacity

• To assess heat loss and gain

• To measure the volume of the solution

How is the efficiency of energy transformation during combustion calculated?

Which macronutrient provides the highest energy value per gram?

• Carbohydrates

• Proteins

• Fats and oils

• Vitamins

What is the typical energy value of carbohydrates in kJ/g?

• 17 kJ/g

• 37 kJ/g

• 29 kJ/g

• 4 kJ/g

Which of the following is NOT a factor considered in solution calorimetry?

• Heat loss to the surroundings

• Calibration of the calorimeter

• Colour of the solution

• Temperature change of the solution

What is the energy value of proteins in kJ/g?

• 17 kJ/g

• 37 kJ/g

• 29 kJ/g

• 4 kJ/g

Which of the following is used to approximate the quantity of heat energy released during combustion?

• Specific heat capacity of air

• Specific heat capacity of water

• Specific heat capacity of metal

• Specific heat capacity of oil

What is the energy value of fats and oils in kJ/g?

• 17 kJ/g

• 37 kJ/g

• 29 kJ/g

• 4 kJ/g