minutes. This is determined by measuring the height of the candle before and after allowing it to burn for 30 minutes. The constants (control variables) are the length of the candle, the diameter of the candle, the allowed burn time and the room temperature. 2. The three types of candles are labeled according to their scents and numbered from 1 to 5 for each type. Their total length and diameter is measured using a ruler and caliper for comparison. Any candle found to have a deviation of…
the sunshine hours, from 10:00 AM to 06:00 PM IST. Both the collectors were inclined at an angle of 13$degree$, facing south side according to the geographic location of Madurai. The inlet and outlet air temperature, ambient temperature, top and bottom of collector surface temperatures were measured at different state points using K-type thermocouples. The data were recorded for every 15 minutes by 34972A Agilent data logger and stored…
is to calculate enthalpy for three different reactions. To calculate the enthalpy of a reaction, a calorimeter is used to measure the change in heat energy from mixing different substances. The change of temperature is found by comparing the change in temperature of the system to the temperature of the surroundings. For a calorimeter, a Styrofoam cup place in a beaker is used. The Styrofoam of the cup minimizes heat loss and the beaker keeps the cup in a stable position. Hot and cold water were…
All things are made of atoms that have constant movement, like five year olds on red bull. So these molecules and atoms make energy in the form of heat from their energy, similar to what your body does when it works out and you start to get hot. Therefore all matter has at least some thermal energy, no matter how small or minute it is. There is different types of energy but this essay is meant to inform readers of conduction, convection and radiation because they all deal with thermal energy.…
The temperature at which enzyme activity is most effective is approximately at 40℃. This result was expected as this trial temperature was closest to internal body temperature, 38℃, and as catalase is present in all body organs (T. Fouad, Antioxidants). Temperature affects chemical reactions by increasing the kinetic motion of molecules and changing the rate of collisions between them. In lower temperatures, kinetic motion is decreased and there are not enough collisions between the molecules…
ABSTRACT Rising temperatures has been an ever growing problem overall for the past half century but even the slightest change in the most seemingly unimportant areas of the environment can cause major disruption in the rest of the world. However, the one of the most unknown consequence of this heat wave is the affect it has on permafrost.…
mechanical work, pressure, temperature, and their roles in energy transformation. Coined by the British physicist Lord Kelvin, the scale of thermodynamics is measured in units of "K". Zero K, or -273˚ C, would represent absolute zero. Absolute zero is the temperature at which no more energy can be extracted from a substance and no further lowering of its temperature is possible. When a substance reaches 0K, the particles of the atoms have little to no kinetic movement, and the temperature…
their structures, including size (molecular weight, surface area), shape and functional groups. These factors significantly influence the strength of the intermolecular forces of attraction present; and the nature and strength of intermolecular forces determine the variations in boilingpoints of organic compounds. The boiling point of a liquid is the temperature at which its vapor pressure equals the external or atmospheric pressure. At this temperature, every molecules of the liquid acquire…
is thermoregulation, which is influenced by body size and environmental temperature. Lizards are ectotherms, meaning they do not self-maintain internal body temperatures; instead, they are the same temperature as the surrounding environment. A rule that explains body mass and temperature correlations, called Bergmann’s rule, predicts a positive correlation between animal body mass and elevation. At higher elevations temperatures are lower, so this rule predicts that larger animals live in cooler…
Table 2. Recorded data of Physical and chemical properties of Wakefield Pond. Figure 3. Graph of temprature vs Depth in each lake. Figure 4. Graph of oxygen concentration vs Depth in each lake. Figure 5. Graph of light vs Depth in each lake. Figure 7. Sketches of plankton and relative aboundace from all two lakes Figure 8. Sketches of plamkton and relative aboundance from all two lakes. Figure 6. Fish in Wakefield Pond variety and numbers. Discussion Lake…