measure both the readings of the electric meter and the electric balance for several times (use a camera to record those if you want accuracy). Plot a graph about energy supplied to the heater against weight of the whole setup. As E=ml latent heat=E/m therefore latent heat is...
Where R is the gas constant and C is the y-intercept of the graph. To find the heat of vaporization, we need to plug in the values for slope, temperature, and gas constant into the equation. The given temperature is in Kelvin, so we do not need to convert it. ...
Water is the most essential element to life on Earth. Learn about water, the properties of water and find out how the water cycle operates.
The molar heat of vaporization is the energy needed to vaporize one mole of a liquid. The units are usually kilojoules per mole, or kJ/mol. Two possible equations can help you determine the molar heat of vaporization. To calculate the molar heat of vaporization, write down your given informa...
Glass transition temperature (Tg) is the temperature at which the material transforms from solid to viscous.The chosen material’s Tgshould be ≥ the maximum withstanding temperature. For instance, if the operating temperature= 200⁰C, choose a laminate with Tg≥ 200 ⁰C. Nelco N7000-2HT ...
What is the specific heat capacity of substance X when 34.80 g of X is heated from a starting temperature of 20.5^oC to 40.9^oC by 2.54 kJ of energy? What does the heat capacity of an object depend on? The capacity is defined as the energy n...
Reversely, HSP distance is long even though it dissolve the polymer. Such case is very hard to find the good reason. But sometime, very few % of hydroxyl group introduction change solving feature dramatically even tough total polymer HSP is not changing at all. ...
the oceans and because the resulting loss of atmospheric water vapor (especially at the poles) accelerated the cooling until the Earth reached an Ice House State.That is, more thermal energy can be radiated to outer space from the polar regions if they have a lower concentration of water ...
The different results achieved by each class can be explained either by the mechanism of action of the included actives for the concentrations of their use. Although this last information is not available it is expected to find a higher concentration of actives in medicines than in cosmetics. In...
1. Complete production lines for the production of following non-wovens, up to rolled goods preparation and packing, namely: (a) Needle punched non-wovens (b) Chemically bonded non-wovens (c) Thermally bonded non-wovens (d) Stitch bond non-wovens ...