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Explain whether or not a heat engine could be made 100 percent efficient by eliminating friction?
Wiki User
∙ 12y ago
Even if the friction were totally eliminated, a heat engine still could not convert heat completely into work and be 100 percent efficient. Instead, the efficiency of an internal combustion engine depends on the difference in the temperature of the burning gases in the cylinder and the temperature of the burning gases in the cylinder and the temperature of the air outside the engine.
Wiki User
∙ 12y ago
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What is the force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
Why are wind turbines not 100 percent efficient?
In any machine some energy is always lost as heat. In a wind turbine most of this will be created by friction between parts.
Explain why power plants are never 100 percent efficient?
There are losses in any machinery- friction of moving parts, loss of heat from steam, a turbine will only capture PART of the energy of the water or steam striking it, and generators do not convert ALL mechanical energy to electricity. There is also electrical resistance in the cables.
What force stops manchines from being 100 percent efficient?
Reducing its temp. heat is the most common form of energy, and when a machine has friction, it is creating heat. by reducing the amount of friction, maybe by using some kind of lubricant between the objects, it will create less heat and thus use less energy input, with a higher input to out put ratio.
Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
Why are no machines 100 percent efficient?
Some energy is lost to friction.
Why aren't machines 100 percent efficient?
becaus ethey have friction
Explain why machines are not 100 percent efficient?
because they are not proper
What is the force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
What are some reason that machines are not 100 percent efficient?
friction and entropy the production of heat with in a system
What force stops machines from being 100 percent efficient?
Any mechanical action will waste energy as heat, therefore the work output is always less than the enegry input.
Why are wind turbines not 100 percent efficient?
In any machine some energy is always lost as heat. In a wind turbine most of this will be created by friction between parts.
Explain why power plants are never 100 percent efficient?
There are losses in any machinery- friction of moving parts, loss of heat from steam, a turbine will only capture PART of the energy of the water or steam striking it, and generators do not convert ALL mechanical energy to electricity. There is also electrical resistance in the cables.
What furnace is 98 percent efficient?
Lennox top o the line furnace is 98.2 percent efficient
What force stops manchines from being 100 percent efficient?
Reducing its temp. heat is the most common form of energy, and when a machine has friction, it is creating heat. by reducing the amount of friction, maybe by using some kind of lubricant between the objects, it will create less heat and thus use less energy input, with a higher input to out put ratio.
Why does friction stops machines from not being 100 percent efficient?
Because friction causes a dissipation of heat energy and other kinetic energy. If you use the equation f = ma (Newton's law), where f= force, m= mass; a= acceleration, you can apply this to any machine and factor friction into the mass x acceleration equation. it will always decrease hypothetical force when applied with friction.
Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
