The three laws of gas define the relationship between pressure (P), volume (V), amount of gas (n) and temperature (T). Boyle’s law says that volume increases when pressure decreases. Charles’ law says that volume increases when temperature increases. Avogadro’s law says that volume increases when amount of gas increases. The ideal gas law is the result of combining the three laws of gas.
The reaction was allowed to continue for twenty minutes and the volume of oxygen gas produced was measured. The decomposition of hydrogen peroxide is a very slow process; however, with the addition of the catalyst, KI, the reaction rate is increased and the decomposition occurs much quicker. The partial pressure of oxygen gas was calculated using the barometric pressure and the vapor pressure of water. From this the moles of I- were calculated and found to be 0.005 moles I-. The solution was then titrated with AgNO3 and volume used to generate the colour change was recorded.
The fastest pH was 6 (total:34.5), and it seems that there wasn’t a large change which resulted in a stable structure. The temperature in our experiment was not very high which didn’t result in denaturation of peroxidase. The temperature seemed to be a constant that didn’t affect the experiment. If the temperature was higher in pH 3 and low in pH 10, then it would cause pH 3 to denature even more which would make the pH 3 total about 4.0. Substrate concentration basically means the amount used for the substrate.
Table 4.3 shows the density test in 1.0wt.%, 1.5wt.% and 2.0wt.% of magnesium doped calcium phosphate pellets at 1000ºC sintering temperature for five samples. The mean density of different concentration are measured based on the average of five samples.
To find the impulse for the highest drop, the value of the force exerted on the container was calculated by multiplying the mass with gravity, which equals 5.89 N. This force was then multiplied by the time it took for the drop, 1.53 s, which equalled an impulse of 9.01 Ns. The impulse and momentum is the same because, in a collision, an object experiences a force for a specific time interval that results in a change in momentum. The result of the force acting causes the object 's velocity to either change speed or direction. In conclusion, the impulse experienced by the object equals the change in momentum of the object, which can be seen in equation Ft = m Δ
Standard Atmospheric pressure in these U.S. common units is 14.7 lb/in2, so this must be added to the gauge pressure above to get the absolute pressure. Pressure Volume Temperature Relationships. Boyle's Law: The Pressure-Volume Law. “Boyle's law or the pressure-volume law states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.” Another way of describing it is saying that their products are constant. When pressure goes up, volume goes down.
Pressure Law ( Gay-Lussac’s Law ) declare that when the volume of gas is kept constant, its pressure will be directly proportional to its temperature in kelvin. When a particular gas is heated in a fixed volume of container, the gas particles will absorb the heat energy supplied and gain an increase in kinetic energy. This is associated by an increase in collision rate
HAPZ administered at higher dose level has shown significant decrease in kidney weight when compared to cisplatin control group but the lower dose of HAPZ has no effect in this aspect. Serum urea In cisplatin administered group there was a remarkable significant increase (228.67%) in the serum urea level in comparison to the normal control group. The results indicated that the drug showed a dose dependent significant reduction in the serum urea level towards normal range. The higher dose of P. zeylanica reduced the concentration of urea by 68.2% when compared to cisplatin control group. Serum
Additionally, tray B displayed both the highest rate of removal (1.11 mg/l per day) and total amount removed (10mg/l), despite having a relatively low initial nitrate concentration at 30mg/l. The inverse applies for Tray D, which, despite having a relatively high initial nitrate concentration at 40mg/l, displayed the lowest rate of removal (with an average of 0.78mg/l removed per day) and total amount of nitrates removed (7 mg/l). This is in contradiction with both the literature (Yang 2013) and the second point of the hypothesis which stated that higher concentrations would result in faster removal rates, which, from the above, can clearly be seen is not the case, thus proving it incorrect. What difference did occur is likely due to either slightly different conditions with certain samples, namely tray B receiving more sunlight due to a slight difference in positioning and thus more favourable conditions or differing amounts of duckweed present due to the non-precise measuring technique used when distributing the duckweed. Additionally, during testing, it was discovered using the pH section of the testing
In the time it took for the enzyme to break up 0.23 grams of egg white at the temperature of 40 degrees, it broke down nearly three times as much in a temperature of 65 degrees. We can see from the graph that the hotter the water bath was the more egg white protein were broken down (because some of the test pieces gained mass, the graph shows the largest LOSS in mass in negatives to distinguish the difference between gaining and losing mass, so if the graph shows negative this indicates the largest loss of mass). Looking back at my hypothesis we can see that it was not correct although some of the predictions were more accurate than others. I predicted that the enzyme would work best in the two middle temperatures as they were the closest to core body temperature. looking at my results from the experiment we can clearly see that this was not true, but instead the two lower temperatures of 4 and 21 degrees Celsius showed a gain in mass while both higher temperatures of 40 and 65 degrees Celsius clearly indicate the breaking down of the particles as their is a clear decline of mass.