Log in
HomeStudy Guides420,000PH800

CHEM015 Study Guide - Quiz Guide: Oil Sands, Acetylene, Internal Combustion Engine

16 views4 pages
sushibae
26 Dec 2022
School
Adamson University
Department
Engineering
Course
CHEM015
Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

1.) In your own words, define what is a fuel and how do they generate energy.
● Fuel is a substance that can be burned to generate heat, light, or power. Wood,
coal, natural gas, and oil are examples of fuel.
● When generating fuels, fossil fuels are burned. They are consumed in the
presence of oxygen in giant power plants. As the fuel burns, heat energy is used
to heat water, and steam rises and spins a turbine as it heats. Energy is
transferred from chemical energy contained in fuels to heat energy when it burns,
turning it into kinetic energy as it powers enormous turbines, and eventually to
electrical energy.
2.) Cite the different classifications of fuels. Explain the reason why they have different
energy values.
● Fuels are categorized into three types based on their phases: solid, liquid, and
gaseous.
● However, we can classify fuels into natural and synthetic categories based on
how they were acquired.
Natural Fuels
Synthetic Fuels
Solid Fuels
Coal
Coke
Wood
Charcoal
Liquid Fuels
Petroleum
Coal tar
Shale oil
Alcohols,
Gaseous Fuels
Natural Gas
Hydrogen Gas
Acetylene
Water Gas
Oil Gas
Unlock document

This preview shows page 1 of the document.
Unlock all 4 pages and 3 million more documents.

Already have an account? Log in

Document Summary

In your own words, define what is a fuel and how do they generate energy. Fuel is a substance that can be burned to generate heat, light, or power. Wood, coal, natural gas, and oil are examples of fuel. When generating fuels, fossil fuels are burned. They are consumed in the presence of oxygen in giant power plants. As the fuel burns, heat energy is used to heat water, and steam rises and spins a turbine as it heats. Energy is transferred from chemical energy contained in fuels to heat energy when it burns, turning it into kinetic energy as it powers enormous turbines, and eventually to electrical energy. Explain the reason why they have different energy values. Fuels are categorized into three types based on their phases: solid, liquid, and gaseous. However, we can classify fuels into natural and synthetic categories based on how they were acquired.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers

Related Documents

ENVIRON 102 Chapter Notes - Chapter 15: Open-Pit Mining, Spent Nuclear Fuel, Internal Combustion Engine
ultramarinereindeer141
PHYS 3080 Lecture Notes - Lecture 1: Standard Deviation, Thomas Edison, Synthetic Crude
yellowsnake384
BIO 130
Final Exam
Study Guide
BIO 130 Midterm: BIO Exam 3 Notes
lemoncrab171

Related Questions

1. Calculate the quantity of heat energy which must be transferred to 2.25 kg of brass to 
raise its temperature from 20 ℃ to 240 ℃ if the specific heat of brass is 394 J.kg-K.


2. Find the change in temperature produced by 10 kJ of heat energy added to 500 g 
copper. Specific heat of copper 0.39 kJ/kg-K.


3. Explain why, for a gas, the specific heat at constant volume has a different value 
from the specific heat at constant pressure.
An ideal gas is contained in a cylinder fitted with a piston. Initially the temperature of the 
gas is 15℃. If the mass of the gas is 0.035 kg, calculate the quantity of heat energy 
required to raise the temperature of the gas to 150 ℃ when:
(a) The piston is fixed;
(b) The piston moves and the pressure is constant.
For the gas, 𝑐𝑣 = 676 J/kg-K and 𝑐𝑝 = 925 J/kg-K.

1. Calculate the quantity of heat energy which must be transferred to 2.25 kg of brass to 
raise its temperature from 20 ℃ to 240 ℃ if the specific heat of brass is 394 J.kg-K.


2. Find the change in temperature produced by 10 kJ of heat energy added to 500 g 
copper. Specific heat of copper 0.39 kJ/kg-K.


3. Explain why, for a gas, the specific heat at constant volume has a different value 
from the specific heat at constant pressure.
An ideal gas is contained in a cylinder fitted with a piston. Initially the temperature of the 
gas is 15℃. If the mass of the gas is 0.035 kg, calculate the quantity of heat energy 
required to raise the temperature of the gas to 150 ℃ when:
(a) The piston is fixed;
(b) The piston moves and the pressure is constant.
For the gas, 𝑐𝑣 = 676 J/kg-K and 𝑐𝑝 = 925 J/kg-K.

The air separation unit is an important energy-consuming unit in the process of ammonia synthesis. For the ammonia process with pure oxygen gasification, the purity of oxygen products in the air separation unit is generally 99.6%. If the oxygen purity from the air separation is reduced properly, its energy consumption will decrease effectively, and the energy consumption of the whole ammonia process may further decrease, as the nitrogen element is needed for ammonia synthesis. However, with the increase of the flow rate, the operating cost of the subsequent unit would increase, so there is an optimal purity that could minimize the energy consumption of the whole process. An ammonia-air mixture containing 10% ammonia is sent to an absorber in which 90% of ammonia is absorbed.

(a) What is the mole fraction of ammonia in the gas leaving?

(b) Express the composition of the exit gas from the absorber in weight percent.

(c) What is the average molecular weight of the gas entering and leaving the column? (Average molecular weight of air is 29)