Can we transfer 5 kWh of heat to an electric resistance wire and produce 6 kWh...
Can we transfer 5 kWh of heat to an electric resistance wire and produce 6 kWh of electricity?
I need to know if its yes or no
please answer yes or no
thank you
thermodynamics 2 nde law
Homework Answers
No.We can't produce 6 kWh of electricity by transferring 5 kWh because as per second law of thermodynamics it is impossible to transfer energy and produce equivalent amount of work.
Here,we can't get more electricity than provided as energy cannot be created.
Add Answer to:
Can we transfer 5 kWh of heat to an electric resistance wire and
produce 6 kWh...
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Q.6: We never included radiation resistance to the thermal resistance circuit of heat exchangers. Now, think...
2-97 A long homogeneous resistance wire of radius r = 5 mm is being used to...
2-97 A long homogeneous resistance wire of radius r = 5 mm is being used to heat the air in a room by the passage of electric current. Heat is generated in the wire uniformly at a rate of 5 X 10' W/m as a result of resistance heating. If the temperature of the outer surface of the wire remains at 180°C. determine the temperature at r = 3.5 mm after steady opera- tion conditions are reached. Take the thermal...
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Need Help!! Physic Part 7 only.
Problem 19.72 (Multistep) A bent bar A 43 cm long high-resistance wire with rectangular cross section 7 mm by 3 mm is connected to a 12 volt battery through an ammeter, as shown in the figure. The resistance of the wire is 58 ohms. The resistance of the ammeter and the internal resistance of the battery can be considered to be negligibly small compared to the resistance of the wire. Leads to a high-resistance...
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Heat transfer
1 Normal 1 No Spac.. Heading 1 Heading2 Title Subt Paragraph Styles Heat Transfer - Assignment 1 An ideal gas is heated from 50 C to 80 C, (a) at constant volume and (b) at constant pressure. For which case do you think the energy required will be greater? Why? 1. 2. Consider a house with a floor space of 200 m2 and an average height of 3 m at sea level essure is 101.3 kPa. Initially the...
If someone can answer any/all of these that would be much appreciated! C. 1. Can an...
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Q.6: We never included radiation resistance to the thermal resistance circuit of heat exchangers. Now, think of a way to add a generic resistance element to any heat exchanger but with taking your answer to the previous question into consideration. How would you formulize the resistance element and how would you incorporate that element into the overall circuit? Can you give a simple/short example?
Q.6: We never included radiation resistance to the thermal resistance circuit of heat exchangers. Now, think...
2-97 A long homogeneous resistance wire of radius r = 5 mm is being used to heat the air in a room by the passage of electric current. Heat is generated in the wire uniformly at a rate of 5 X 10' W/m as a result of resistance heating. If the temperature of the outer surface of the wire remains at 180°C. determine the temperature at r = 3.5 mm after steady opera- tion conditions are reached. Take the thermal...
Need Help!! Physic Part 7 only.
Problem 19.72 (Multistep) A bent bar A 43 cm long high-resistance wire with rectangular cross section 7 mm by 3 mm is connected to a 12 volt battery through an ammeter, as shown in the figure. The resistance of the wire is 58 ohms. The resistance of the ammeter and the internal resistance of the battery can be considered to be negligibly small compared to the resistance of the wire. Leads to a high-resistance...
Heat transfer
1 Normal 1 No Spac.. Heading 1 Heading2 Title Subt Paragraph Styles Heat Transfer - Assignment 1 An ideal gas is heated from 50 C to 80 C, (a) at constant volume and (b) at constant pressure. For which case do you think the energy required will be greater? Why? 1. 2. Consider a house with a floor space of 200 m2 and an average height of 3 m at sea level essure is 101.3 kPa. Initially the...
If someone can answer any/all
of these that would be much appreciated!
C. 1. Can an electrically charged object produce an electric force on a neutral object? a. No, never. Coulomb's Law clearly says the force must be zero. b. Yes, but only if the neutral object is moving. C. Yes, if charge distribution in the neutral object is not uniform. This occurs often and naturally produces an attraction. d. Yes, if charge distribution in the neutral object is not...
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...
6。C. designates the heat capacity measured at constant volume. We could imagine measuring the heat capacity of some material at two different fixed volumes. We wouldn't necessarily get the same answer and thus C, can itself be a fiunction of volume. It tuns out that if we know C at one volume we don't need to measure it at another volume if we know the equation of state Show that: ac You will need to make use of the definition...
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