Homework Answers
Concept used:- here we use the formula for heat energy required to raise the temperature of water and use the relation between power, energy and time,
***************************************************************************************************
This concludes the answers. If there is any mistake,
let me know immediately and I will fix
it....
Add Answer to:
02: 12+2- 4 Marks a) What energy would be required to boil 4 Litres of water...
How many joules of heat energy are required to completely boil away 168.2 g of water...
How many joules of heat energy are required to completely boil away 168.2 g of water starting at room temperature (25°C)?
How much thermal energy (in J) is required to boil 2.20 kg of water at 100.0°C...
How much thermal energy (in J) is required to boil 2.20 kg of water at 100.0°C into steam at 143.0°C? The latent heat of vaporization of water is 2.26 ✕ 106 J/kg and the specific heat of steam is 2010 J / kg · °C . J
Question 12 1 pts How much thermal energy (in 10ⓇJ) is required to boil 2.25 kg...
Question 12 1 pts How much thermal energy (in 10ⓇJ) is required to boil 2.25 kg of water at 100.0°C into steam at 145.0°C? The latent heat of vaporization of water is 2.26 X 100 J/kg and the specific heat of steam is 2010 J/kg °C. (Answer should have three significant digits. Do not include the exponential part. Example: Fill in the blank ___x 106 J).
Introduction of renewable energy 1) Draw a schematic diagram of a passivesolar water heater and write...
Introduction of renewable energy
1) Draw a schematic diagram of a passivesolar water heater and write in numbered steps how it works (2 marks) In what specific applications can solar water heater be used? (1 mark) Consider a solar water heater with a flat plate collector of area 6 m-positioned in a place where the solar irradiance is 800 W/m a) How much solar power reaches the collector? (1 mark) b) If the flat plate collector has 50% efficiency, how...
Question 10 - M1 (18 marks) Many people use electric kettles in their houses to boil...
Question 10 - M1 (18 marks) Many people use electric kettles in their houses to boil water (for example to make a cup of tea or coffee) These devices work by passing an electric current through a metal wire. As the electricity passes through the wire, it gets hot and this is the source of heat to boil the water. Consider the Kettle shown in the figure below. The electricity passes through a coiled 'resistance wire' which is housed within...
Problem 02 (Energy, Stoichiometry): (25 points) What mass of carbon dioxide as C will be produced...
Problem 02 (Energy, Stoichiometry): (25 points) What mass of carbon dioxide as C will be produced if 150 gm of butane is completely oxidized to carbon dioxide and water? How much O2 will be required for the conversion? If the air is consist of 21% 02, how much of air will be used in the process as well?
Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. (a) How much energy is required...
Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. (a) How much energy is required to raise the temperature of that volume of water from 12.8°C to 20.0°C? (Assume the density of this water to be equal to that of water at 20°C and 1 atm.) ________J (b) How many years would it take to supply this amount of energy by using the 1,200-MW exhaust energy of an electric power plant? _________ yr
Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. (a) How much energy is required...
Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. (a) How much energy is required to raise the temperature of that volume of water from 12.2°C to 25.6°C? (Assume the density of this water to be equal to that of water at 20°C and 1 atm.) J (b) How many years would it take to supply this amount of energy by using the 1,400-MW exhaust energy of an electric power plant? yr
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass...
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines. b) How many grams of...
Only need question C answered Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transpor...
Only need question C answered
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines....
Question 12 1 pts How much thermal energy (in 10ⓇJ) is required to boil 2.25 kg of water at 100.0°C into steam at 145.0°C? The latent heat of vaporization of water is 2.26 X 100 J/kg and the specific heat of steam is 2010 J/kg °C. (Answer should have three significant digits. Do not include the exponential part. Example: Fill in the blank ___x 106 J).
Introduction of renewable energy
1) Draw a schematic diagram of a passivesolar water heater and write in numbered steps how it works (2 marks) In what specific applications can solar water heater be used? (1 mark) Consider a solar water heater with a flat plate collector of area 6 m-positioned in a place where the solar irradiance is 800 W/m a) How much solar power reaches the collector? (1 mark) b) If the flat plate collector has 50% efficiency, how...
Question 10 - M1 (18 marks) Many people use electric kettles in their houses to boil water (for example to make a cup of tea or coffee) These devices work by passing an electric current through a metal wire. As the electricity passes through the wire, it gets hot and this is the source of heat to boil the water. Consider the Kettle shown in the figure below. The electricity passes through a coiled 'resistance wire' which is housed within...
Problem 02 (Energy, Stoichiometry): (25 points) What mass of carbon dioxide as C will be produced if 150 gm of butane is completely oxidized to carbon dioxide and water? How much O2 will be required for the conversion? If the air is consist of 21% 02, how much of air will be used in the process as well?
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines. b) How many grams of...
Only need question C answered
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines....
Most questions answered within 3 hours.
-
Rice Products in Bangladesh
Business behavior is derived in large part from the basic cultural
environment...
asked 58 seconds from now -
The following base sequence is found for a mRNA fragment from
wild-type E. coli: 5'- UAUCAGUAGAUAAUGUAACC-3'...
asked 22 minutes ago -
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 40 minutes ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 44 minutes ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 1 hour ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 1 hour ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 4 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 5 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 5 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 5 hours ago -
When a metal rod is heated, not only its resistance but also its
length and cross‐sectional...
asked 5 hours ago -
write a c++ program that computes the L^1 - Norm of a given
vector (L^1 norm...
asked 5 hours ago