Title: Unit 4 Quiz
Course: ENGY 111 Introduction to Biofuels > Section: ENGY 111 Introduction to Biofuels

Q: Energy flow is the energy entering the process in the form of feedstock and the energy leaving the process in the form of gas, liquid fuel, electricity, or heat redirected back into the process
- True
- False
A: True

Q: An endothermic reaction is when heat is given off.
- True
- False
A: False

Q: Thermodynamics is described as the chemistry of heat conversion.
- True
- False
A: False

Q: Mass balance is defined as the 'net mass' flow of something entering and exiting a control volume.
- True
- False
A: True

Q: Energy loss occurs during the conversion process. Some factors resulting in energy loss are:
- Unconverted feedstock.
- Energy use by boilers, pumps, valves, and electricity.
- Heat loss during fermentation and/or distillation.
- All of the above
A: All of the above

Q: Heat rate, measured in Btu/h, is the efficiency of the process in converting chemical energy into electric power.
- True
- False
A: True

Q: Thermodynamic efficiency is the measurement of energy loss associated with converting the chemical energy from biomass into fuel and conserving as much energy as possible.
- True
- False
A: True

Q: Waste heat is defined as:
- that which cannot be reclaimed, harnessed, or usefully redirected.
- that which powers pumps and valves.
- chemical reactors that breakdown the feedstock.
- making electricity.
A: that which cannot be reclaimed, harnessed, or usefully redirected.

Q: When determining energy balance in fuel production, it is the difference between the energy in 1 kg of fuel, i.e. biodiesel, uranium, petroleum, and the fuel necessary to produce it, i.e. drilling, cultivation, transport, refining,etc.
- True
- False
A: True

Q: Enthalpy is the heat of a system is equal to the sum of its energy plus the product of its pressure and volume.
- True
- False
A: True