The Maxwell Distribution Curve below supports the prediction about the increase of temperature, increasing the rate of reaction. Curves T1 and T2 show the distribution of kinetic energies for gaseous at those two temperatures. Curve T2 represents a higher temperature and thus is positively skewed. The peak of the graph with the most molecules is shifted towards a higher kinetic energy and the curve broadens out. For both T1 and T2, the total area under the curve is the same and the fraction of molecules with energy greater than the activation energy (Ea) is significantly larger in T2 than in T1.
The mathematical relationship that exists between pressure and volume when temperature and quantity are held constant is that pressure is inversely proportional to volume. This relationship is known as Boyle’s Law. P1 x V1 = P2 x V2. When the volume of a container is decreased, when still containing the same amount of molecules, more molecules will hit the sides of the container, thus increasing the pressure. We were asked to graph pressure and the inverse of volume because the graph of pressure and inverse volume is inversely related to the graph of pressure and volume.
If a reaction has a high rate, this means that the molecules collide at a faster speed than that of with a low rate. This simply means that when a higher concentration of HCL is mixed with CaCO3 the rate reaction will be faster than a HCL with a lower concentration. The higher the molar concentration of the HCL, the more molecules the acid will have to collide with calcium carbonate, thus allowing them to react quicker, therefore meaning that they have a higher reaction rate. When an acid is diluted with water, the molar volume will decrease, therefore decreasing the amount of acid molecules, and thus decreasing the chances of collision, however an acid has a higher molar concentration is likely to have faster reaction time. The collision theory states that if a system has more collisions, there will be a greater number of molecules bouncing into each other.
It is related to the pressure, volume, temperature and number of molecules. The gas pressure in a container is due to the collision of the gas molecule against the wall of the container. The gas pressure can be increased by decreasing the volume of the container at a constant temperature of gas; increasing the number of gas molecules or increasing the temperature of the gas at constant volume of the container. Boyle’s law states that the pressure of a fixed
The experiment was done at room temperature the hot air velocity was considered to behave as an ideal gas. The drying air temperature ranged between 39.9 and 79.9oC, and the hot air velocity between 1.1 and 3.6 m/s. The raising of the air temperature and air velocity resulted in the drying rate increasing and, which means the drying time is reduced to gain the desired ﬁnal moisture content. The effect of the power of ultrasound on the rate of drying was observed at drying temperatures of between 40 and 60oC, and an air velocity of between 1 and 2 m/s. As can be expected the drying rate increases with the ultrasound power at a higher level.
This energy serves to evaporate the working fluid out of the absorption medium at a high pressure. The absorption medium’s pressure is then reduced via an expansion device as it flows to the absorber. Within the absorber the working fluid is absorbed (P0/T1) back into the medium. This is an exothermic process, meaning usable heat is released at an intermediate temperature. Lastly, the pressure of the mix is increased with a pump and flow back to the generator (where thermal energy is provided in the first place).
The K value increases when the thickness of specimen decreases. For example, at constant temperature100 ºC and flow rate 100L/ Hour, the thicker test piece (4.0mm) show the lower K value ( 5.888kcal/(mh⁰C)) whereas 11.776 kcal/(mh⁰C) for the thinner test piece (2.0mm). The difference in K value between the two test pieces may be because of the presence of the resistance. This can be explained when the resistance is reciprocal of conduction. In addition, the main purpose for the two test pieces to have different thickness is to eliminate the contact resistance.
Background Information Gay-Lussac's law has the concept of the ideal gas law, with constant volume, pressure is directly proportional to the absolute temperature in ideal gas. The expression Gay-Lussac's law is used for each of the two relationships which involves the
The length of the X–H bond is generally increased upon the formation of hydrogen bond Which in turn leads to a shift in infrared X-H frequency and an increase is observed in the infrared absorption leading to a red shift in the infrared X–H stretching frequency and an increase is observed in the infrared absorption. 5. The X–H hydrogen bond results in proton deshielding of hydrogen in X–H, through the coupling of hydrogen bond spins. 6. The Gibbs free energy of hydrogen bond must be higher than thermal energy.
It can be calculated according to type of material. If humidity of the raw material is very high than the quality of briquettes is less. 4.1.2 Compacting Pressure Compacting pressure is most important factor which is affect the quality of briquettes. Higher the pressure higher the strength of briquettes. Rise in temperature of material during the briquetting process reduce the needed pressure for briquetting for desired quality.