The efficiency of an ideal heat engine working between
Asked by admin @ in Physics viewed by 296 People
The efficiency of an ideal heat engine working between the freezing point and boiling point of water is
Answered by admin @
According to Carnot theory ,
The efficiency of an ideal heat engine is given by
η = 1 - T₂/T₁
Where T₁ is the temperature of source ,
T₂ is the temperature of sink ,
η is the efficiency of heat engine .
Here you should understand that sink's temperature < source temperature
We know, freezing point of water = 0°C = 273K
Boiling point of water = 100°C = 373K
∴ T₁ = 373K , T₂ = 273K
∴η = 1 - 273/373 = 1 - 0.732 = 0.268
Hence, % efficiency = 100η = 26.8 %
Similar Questions
Efficiency of heat engine cycle is the ratio of
Asked by admin @ in Physics viewed by 291 persons
Efficiency of heat engine cycle is the ratio of
The efficiency of a carnot engine would be increased if
Asked by admin @ in Physics viewed by 239 persons
You are now operating a carnot engine at 40% efficiency, which exhausts heat into a heat sink at 298 k.if you want to increase the efficiency of the engine to …
An engine has an efficiency of 1 6
Asked by admin @ in Physics viewed by 304 persons
A Carnot engine has an efficiency of 1/6. When the temperature of the sink is reduced by 62ºC, its efficiency is doubled. The temperatures of the source and the sink …
The efficiency of a carnot engine is 1 6
Asked by admin @ in Physics viewed by 267 persons
the efficiency of carnot engine is 1/6 if on reducing the temperature the temperature of sink by 65k the efficnecy becomes 1/3 find the intial and final temperature btween wich …
A diatomic ideal gas is heated at constant volume
Asked by admin @ in Physics viewed by 305 persons
A diatomic ideal gas is heated at constant volume until its pressure is doubled. It is again heated at constant pressure until its volume is doubled. The molar heat capacity …
If a gasoline engine has an efficiency of 21 percent
Asked by maham237 @ in Physics viewed by 338 persons
and losses 780 J to the cooling system and exhaust during each cycle, how much work is done by the engine?
What is a steam engine and how does it work
Asked by admin @ in Physics viewed by 321 persons
What is the part of the steam engine that does the work? A. The flywheel B. The cylinder C. The piston D. The turbine
The american council for an energy efficient economy works to_______?
Asked by maham237 @ in Business viewed by 366 persons
The american council for an energy efficient economy works to
Asked by maham237 @ in Business viewed by 281 persons
A jet engine works on the principle of
Asked by admin @ in Physics viewed by 302 persons
A jet engine works on the principle of:
Conservation of linear momentum
Conservation of kinetic energy
Conservation of angular momentum
Conservation of inertia
Explaination plz
Jet engine works on the principle of conservation of
Asked by admin @ in Science viewed by 320 persons
A jet engine works on the principle of conservation of
A. Linear momentumB. Angular momentumC. Energy MassD. Mass Velocity
How does heat conduction work in the metal brownie pan
Asked by admin @ in Science viewed by 340 persons
How does heat radiation work in the glass brownie pan?
How does heat conduction work in the metal brownie pan?
This process of heat transfer by conduction would not work
Asked by maham237 @ in Physics viewed by 319 persons
What helps the digestive system to work efficiently
Asked by maham237 @ in Chemistry viewed by 287 persons
2) The respiratory and digestive system work together to help the bodyfunction efficiently. What is ONE way in which the two body systems
work together?
A)
The respiratory and digestive …
The first law of thermodynamics internal energy heat and work
Asked by admin @ in Physics viewed by 336 persons
The first law of thermodynamics states that ΔE= Q− W . Is this also a statement of the principle of conservation of energy? Yes, the heat added and the change …
Most viewed questions in Physics
Jeevandeep health and physical education std 10 answers pdf
Asked by admin @ in Physics viewed by 11073 persons
Hc verma physics class 9 solutions of describing motion
Asked by admin @ in Physics viewed by 2672 persons
Base area and stability of some objects with different shapes
Asked by admin @ in Physics viewed by 1533 persons
Which of the following statements about safe lifting are correct
Asked by admin @ in Physics viewed by 1518 persons
A rocket of mass m is launched straight up with thrust f⃗ thrust.
Asked by maham237 @ in Physics viewed by 1317 persons
A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is
Asked by maham237 @ in Physics viewed by 1206 persons
Mind map for light reflection and refraction class 10
Asked by admin @ in Physics viewed by 1148 persons
The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.
Asked by maham237 @ in Physics viewed by 1101 persons
A 5.8 x 10 4 watt elevator motor can lift
Asked by maham237 @ in Physics viewed by 1082 persons