Chemical engineering is a multidisciplinary field that integrates principles of chemistry, physics, mathematics, and engineering to design and optimize processes for the production, transformation, and utilization of chemicals, materials, and energy. In the context of the Chemical Engineer Licensure Examination in the Philippines, several key components are crucial for success.
Firstly, understanding Physical and Chemical Principles is fundamental. This involves grasping core concepts of thermodynamics, fluid dynamics, heat transfer, and reaction kinetics. Mastery of these principles enables engineers to analyze and optimize chemical processes efficiently.
Secondly, Physical Chemistry for Engineers plays a vital role. This includes topics like phase equilibria, chemical equilibrium, and electrochemistry, providing the groundwork for designing chemical reactions and understanding material behavior at a molecular level.
Fundamentals of Material Science are equally important. This encompasses knowledge of materials' properties, behavior under different conditions, and selection criteria for various applications in chemical engineering processes.
Lastly, Environmental Science and Engineering are critical aspects. Engineers must be equipped to address environmental challenges, such as pollution control, waste management, and sustainable practices in chemical manufacturing.
By focusing on these components within the context of the licensure exam, aspiring chemical engineers can build a solid foundation for their careers and contribute effectively to industries promoting sustainability and innovation.
PHYSICAL AND CHEMICAL PRINCIPLES REVIEWER
Welcome to our Chemical Engineering Reviewer Focusing on Physical Chemistry for Engineers, Fundamentals of Material Science, and Environmental Science and Engineering Practice Examination! In this session, you'll have the opportunity to test your understanding of key concepts in Chemical Engineering Subjects. The quiz consists of multiple-choice questions covering various topics. Pay close attention to each question and select the best answer. After completing the exam, check the video below for the answer key and explanations.
Physical Chemistry for Engineers
1. Which of the following is NOT a state function?
A) Enthalpy
B) Entropy
C) Work
D) Internal Energy
2. According to the First Law of Thermodynamics, which of the following statements is true?
A) Energy cannot be created or destroyed
B) Energy always flows from hot to cold objects
C) Entropy of an isolated system always decreases
D) Heat and work are interchangeable
3. Which gas law describes the relationship between pressure (P), volume (V), and temperature (T) of an ideal gas when moles (n) are constant?
A) Boyle's Law
B) Charles's Law
C) Gay-Lussac's Law
D) Ideal Gas Law
4. What does the term "activation energy" refer to in the context of chemical reactions?
A) The energy released during a reaction
B) The minimum energy required for a reaction to occur
C) The change in enthalpy of a reaction
D) The entropy change during a reaction
5. At what temperature will the average kinetic energy of gas molecules be equal to zero on the Celsius scale?
A) 0°C
B) -273.15°C
C) 100°C
D) 273.15°C
6. Which phase transition is characterized by a change from a solid directly to a gas without passing through the liquid phase?
A) Deposition
B) Condensation
C) Sublimation
D) Evaporation
7. Which property of a solution is influenced by the van't Hoff factor (i)?
A) Vapor pressure
B) Boiling point
C) Freezing point
D) Osmotic pressure
8. Which statement describes Hess's Law of Heat Summation?
A) The enthalpy change of a reaction is equal to the sum of the enthalpy changes of its individual steps
B) Heat always flows from a higher temperature to a lower temperature
C) The entropy of the universe is always increasing
D) The standard enthalpy of formation of an element in its most stable form is zero
9. Which term describes the phenomenon where a solute's solubility decreases with increasing temperature?
A) Henry's Law
B) Le Chatelier's Principle
C) Raoult's Law
D) Ostwald's Dilution Law
10. Which principle states that the total pressure exerted by a mixture of non-reacting gases is equal to the sum of the partial pressures of each gas?
A) Dalton's Law of Partial Pressures
B) Boyle's Law
C) Charles's Law
D) Gay-Lussac's Law
Fundamentals of Material Science
1. Which of the following is NOT a primary bonding type in materials?
A) Ionic
B) Covalent
C) Metallic
D) Van der Waals
2. What is the primary crystal structure of pure iron at room temperature?
A) Body-centered cubic (BCC)
B) Face-centered cubic (FCC)
C) Hexagonal close-packed (HCP)
D) Simple cubic (SC)
3. Which property of a material is primarily affected by the arrangement of its atoms and bonding type?
A) Density
B) Hardness
C) Electrical conductivity
D) Thermal expansion
4. What is the primary strengthening mechanism in aluminum alloys?
A) Grain boundary strengthening
B) Solid solution strengthening
C) Precipitation hardening
D) Cold working
5. Which of the following is a typical polymerization technique used to produce polyethylene and polypropylene?
A) Condensation polymerization
B) Radical polymerization
C) Ring-opening polymerization
D) Step-growth polymerization
6. What type of defect in a crystalline material involves the presence of an extra atom positioned between atomic planes? A) Vacancy defect
B) Interstitial defect
C) Frenkel defect
D) Schottky defect
7. Which type of ceramic material typically exhibits covalent bonding and is known for its high melting points and excellent chemical resistance?
A) Oxides
B) Carbides
C) Nitrides
D) Silicates
8. What type of corrosion occurs at the interface between dissimilar metals in contact with an electrolyte?
A) Pitting corrosion
B) Galvanic corrosion
C) Crevice corrosion
D) Intergranular corrosion
9. Which mechanical property of a material describes its ability to absorb energy and deform plastically before fracture?
A) Hardness
B) Elastic modulus
C) Toughness
D) Yield strength
10. What is the primary reason for adding carbon as an alloying element to iron to produce steel?
A) To increase hardness
B) To enhance ductility
C) To improve corrosion resistance
D) To strengthen and harden the material
Environmental Science and Engineering
1. Which of the following pollutants is a greenhouse gas primarily responsible for global warming?
A) Carbon monoxide (CO)
B) Sulfur dioxide (SO2)
C) Nitrogen dioxide (NO2)
D) Carbon dioxide (CO2)
2. What is the main purpose of a biological wastewater treatment plant?
A) To remove heavy metals from wastewater
B) To neutralize acidic wastewater
C) To biologically degrade organic pollutants
D) To remove suspended solids from wastewater
3. Which air pollution control device is most effective for removing particulate matter from industrial exhaust gases?
A) Electrostatic precipitator
B) Scrubber
C) Baghouse filter
D) Catalytic converter
4. What is the primary mechanism responsible for the formation of acid rain?
A) Release of sulfur dioxide (SO2) and nitrogen oxides (NOx)
B) Combustion of methane (CH4)
C) Emission of volatile organic compounds (VOCs)
D) Discharge of heavy metals into water bodies
5. Which water treatment process involves the removal of dissolved salts using a semi-permeable membrane?
A) Coagulation
B) Filtration
C) Reverse osmosis
D) Chlorination
6. What is the purpose of using catalytic converters in automobiles?
A) To reduce carbon dioxide emissions
B) To convert nitrogen oxides (NOx) into nitrogen gas (N2)
C) To oxidize carbon monoxide (CO) and hydrocarbons (HC) into carbon dioxide (CO2) and water (H2O)
D) To capture particulate matter from exhaust gases
7. What is a common method used to control odor emissions from wastewater treatment plants?
A) Adsorption
B) Chemical oxidation
C) Biofiltration
D) Ultraviolet (UV) disinfection
8. Which of the following is a major greenhouse gas released from agricultural activities such as rice cultivation and livestock farming?
A) Methane (CH4)
B) Carbon monoxide (CO)
C) Nitrous oxide (N2O)
D) Hydrochlorofluorocarbons (HCFCs)
9. What is the primary objective of soil remediation techniques?
A) To increase soil erosion
B) To improve soil fertility
C) To remove contaminants and restore soil quality
D) To enhance groundwater pollution
10. Which of the following is a renewable energy source that can be harnessed to generate electricity without emitting greenhouse gases?
A) Natural gas
B) Coal
C) Wind
D) Petroleum
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