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The equation for specific heat capacity allows you to work out the energy produced. If the value in J or kJ is positive then the reaction is exothermic, because it produced an excess of energy. If the value is negative then of course it's endothermic, because it requires an input of energy, so that the reaction even takes place.
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What physical change was noted in dissolving one gram of sugar in 5ml of water?
Changes of: density, viscosity, boiling point, freezing point, electrical conductivity, thermal conductivity, compressibility, etc.
What are the transport properties of fluids?
Transport properties of fluids include viscosity, thermal conductivity, and diffusivity. Viscosity is a measure of a fluid's resistance to flow, thermal conductivity relates to the fluid's ability to conduct heat, and diffusivity describes how easily a substance can spread or diffuse within the fluid. These properties are important in various engineering applications, such as in fluid dynamics and heat transfer processes.
What is the thermal conductivity of fullerene?
The thermal conductivity of fullerene, specifically C60, is relatively low compared to metals, typically ranging from about 0.1 to 0.2 W/m·K at room temperature. This low thermal conductivity is attributed to its molecular structure and the weak van der Waals interactions between fullerene molecules. However, variations in thermal conductivity can occur depending on the fullerene form, purity, and temperature.
Is sodium chloride a thermal conductivity?
No, sodium chloride is not a thermal conductivity. Thermal conductivity is a property that describes the ability of a material to conduct heat, while sodium chloride is a compound composed of sodium and chloride ions.
What is thermal conductivity of cast iron?
Thermal conductivity refers to the measure of the ability of a material to allow the flow of heat from its warmer surface to its colder surface. The thermal conductivity of cast iron is 80 Wm-1K-1.
What the 4 properties of air?
Examples are: density, thermal conductivity, refractive index, viscosity.
What ar the 4 properties?
Examples are: density, thermal conductivity, refractive index, viscosity.
What are-the 4 properties of air?
Examples are: density, thermal conductivity, refractive index, viscosity.
What has the author James Torrance Ritchie Watson written?
James Torrance Ritchie Watson has written: 'Thermal conductivity of gases in metric units' -- subject(s): Rare Gases, Tables, Thermal conductivity 'Viscosity of gases in metric units' -- subject(s): Tables, Viscosity
What are physical properties of paint?
Examples: density, viscosity, hardness after drying, adhesivity, thermal and electrical conductivity, etc.
Witch liquid freezes faster?
Generally, liquids with lower viscosity and higher thermal conductivity tend to freeze more quickly. This means that liquids like water or milk, which have low viscosity and high thermal conductivity, will freeze faster than liquids like oil or honey.
What is the relationship between thermal conductivity and the efficiency of heat transfer in a series of materials?
The relationship between thermal conductivity and the efficiency of heat transfer in a series of materials is direct. Materials with higher thermal conductivity are more efficient at transferring heat compared to materials with lower thermal conductivity. This means that heat transfers more easily and quickly through materials with higher thermal conductivity.
A dimensionless number which is a ratio of kinematics viscosity to thermal?
The ratio between the kinematic viscosity and the thermal diffusivity is called the Prandtl Number.
What is prandtl number and what is its significance?
Prandtl number is dimensionless number, denoted by Npr.Npr = Cp (viscosity)/(thermal conductivity) Cp - specific heat, J per ( Kg Kelvin) viscosity in poise (gm per( cm sec)) thermal conductivity in Watt per (meter kelvin) Prandtl number is important in heat transfer.
Do elements that have high electric conductivity also have high thermal conductivity?
Not necessarily. While there is some correlation between electrical and thermal conductivity in metals, there are exceptions. For example, diamond is a good thermal insulator despite being a good electrical insulator. Additionally, materials like ceramics can have low electrical conductivity but high thermal conductivity.
What is thermal agitation process?
Thermal agitation refers to the random movement of particles in a material due to their thermal energy. This movement can cause collisions between particles and can influence properties such as diffusion, viscosity, and conductivity. In materials science, thermal agitation is important in understanding the behavior of atoms and molecules in solids, liquids, and gases.
What physical change was noted in dissolving one gram of sugar in 5ml of water?
Changes of: density, viscosity, boiling point, freezing point, electrical conductivity, thermal conductivity, compressibility, etc.
