Silver is the metal that conducts heat the fastest. The thermal conductivity of silver is 420 W/ (m• K) or watts per meter degrees of Kelvin. Thermal conductivity measures the ability of heat or thermal energy to move through materials.
A:A fuel pump pulls gasoline from the tank, guiding it along a pipe to the carburetor. Some fuel pumps are electric, mounted near or in the fuel tank, while others operate mechanically in concert with the engine. Either way, the fuel pump is what gets the gasoline where it needs to go.
A:Silver is the metal that conducts heat the fastest. The thermal conductivity of silver is 420 W/ (m• K) or watts per meter degrees of Kelvin. Thermal conductivity measures the ability of heat or thermal energy to move through materials.
A:The temperature of a flame from a known material can be estimated based on the flame's color. However, flame color is also affected by the material being burnt and differs based on its chemical properties in addition to its temperature.
A:Convection occurs when a cold pot of water is placed on a stove burner that transfers heat to the bottom of the pan. As the water in the pan warms, it begins to bubble on the surface. Generally, convection transfers heat from a warm area to a cooler one.
A:Freshwater freezes faster that saltwater, according to the National Oceanic and Atmospheric Administration. Freshwater freezes at 32 F, while saltwater freezes at a slightly lower temperature, 28.4 F.
A:Many metals, like silver, copper, gold and aluminum, are good thermal conductors. Thermal conductors are materials that heat passes through easily. Conduction, or the transfer of heat, can take place within a single material or between two objects.
A:Visible flames are hot gases emitting light, which naturally rises because it is hotter (and therefore less dense) than the air around it. These hot gases are byproducts of the chemical reaction of combustion, or burning.
A:The difference between temperature and thermal energy is that temperature measures the average kinetic speed of molecules and thermal energy is the total kinetic energy of all particles in a given substance. In other words, temperature measures the average speed of movement, and thermal energy measures the mass of a substance. Both temperature and thermal energy are made by the movement of particles.
A:According to About.com expert Timothy Thiele, oil heaters are electric appliances that warm the surrounding air by passing hot oil through a series of metal tubes. Oil is the ideal filling for space heaters because it heats quickly and gets extremely hot without boiling. As the heater runs, the hot oil heats its metal tubing, which has poor heat retention and quickly releases the heat into the air.
A:Industry safety standards require duct tape to be nonflammable and safe to use in temperatures up to 200 degrees Fahrenheit. Adhesive endurance is reduced in temperatures over 180 degrees Fahrenheit.
A:Hot air rises because when a substance is hot, its molecules are farther apart, which makes the hot air less dense and, therefore, lighter than cooler air. Air is generally warmer nearer the surface of the Earth because of the sun's radiating heat. When hot air rises, it starts to get cooler and eventually it sinks back down to the surface.
A:Boiling can be considered as a cooling process because as a liquid reaches its critical temperature, heat escapes through rapid evaporation. Essentially, boiling happens when liquids turn into gases, forcing excess heat out of the liquid.
A:Metals conduct heat well for two reasons: metal ions pack very closely together in their molecular lattice, and electrons drifting through the metal carry kinetic energy around the lattice. The result is a quick elevation in particle motion that is expressed through heat energy. This conductivity is one reason why one rarely sees metal playground equipment anymore — although the slides go a lot faster than plastic ones, sitting on a slide on a hot summer afternoon is often quite painful.
A:While a flame is the gaseous portion of a fire, a candle flame contains millions of diamond nanoparticles. Approximately 1.5 million diamond nanoparticles are created every second before converting into carbon dioxide. All four forms of carbon are present within a candle flame: elemental carbon, graphite, white carbon and diamond.
A:According to the National Satellite and Information Service, the hottest time of the day is generally around midafternoon. The exact time of the day that it is the hottest depends on where a person lives and what time of the year it is.
A:A Zippo brand lighter that produces sparks but no flames could have insufficient lighter fluid or a dirty flint wheel, or the lighter may require flint replacement or wick cleaning or replacement. The Zippo lighter may contain incorrect lighter fluid or be too cold to function properly.
A:The first law of thermodynamics sets the relationship of the change of internal energy as equal to the addition of heat minus the work a system completes. This is one of three laws that determines the characteristics of thermodynamics.
A:The equation for calculating kinetic energy is KE = ½mv², where m is the mass of the object and v is its velocity. When an object is at its highest, it has the most potential or stored energy; at its lowest point, it has its most kinetic energy.
A:Absolute zero is the coldest possible temperature, at which no heat is left in a substance and its particles display no motion whatsoever. Absolute zero is equal to 0 K on the Kelvin scale, which is equivalent to negative 273.15 degrees Celsius or negative 459.67 degrees Fahrenheit.
A:The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit at one atmosphere of pressure or at sea level. However, at high altitudes, like on a mountain, water boils at a lower temperature. When atmospheric pressure increases, water boils at a higher temperature.