January 31, 2017
Enzyme I: pH and Temperature Lab Report
(2008, November 11). Without Enzyme, Biological Reaction Essential To Life Takes 2.3 Billion Years. Retrieved January 31, 2017. The basic concept that is being explored are about enzymes. Enzymes are proteins that are known for being sparkplugs in a chemical reaction. Enzymes have a shape and for them to ‘spark’ they must have the proper substrate for it to work U. This does not change the enzyme’s…
Procedure: Before beginning each experiment, remove all clutter from the workstation and read the directions for the experiments thoroughly.
Part 1: Warm slightly more than 300 mL of water to approximately 70 degrees Celsius. Measure out 150 mL of water into the coffee cup calorimeter. Take the temperature of this water in the coffee cup calorimeter once it has reached a steady temperature. Then, add an ice cube approximately the size of a large marshmallow. Stir the ice and water and measure…
quality. For the Marcet boiler experiment, it was found that the higher the system pressure, the higher the saturated temperature. For the Boyle’s law experiment, it was found that pressure is directly proportional to volume, despite using non-ideal gas for the experiment.
1 Introduction and Theory
The aim of this lab demonstration is to get familiar with operating pressure systems in order to investigate…
An ultrasonic interferometer is a simple and direct device to determine the ultrasonic velocity in liquids with a high degree of accuracy.
An ultrasonic interferometer is used to determine the accurate ultrasonic velocity in liquids.
The principle used in the measurement of velocity is based on the accurate determination of the wavelength in the medium.
The principle of ultrasonic interferometer for the measurement of velocity is determination of the…
Photosynthesis is the process used by plants, algae and some bacteria, to use the energy from the sunlight to transform carbon dioxide and water into glucose and oxygen. The equation for photosynthesis is: carbon dioxide + water light energy glucose + oxygen. Chloroplasts are an organelle found in the leaves of green plants and are essential in photosynthesis as they are responsible for producing the glucose and storing the energy. Photosynthesis is vital for all life on…
When dry ice is put into water they start to reacting and boiling. That reaction is called sublimation. Sublimation is when something solid goes straight to gas skipping the liquid phase. So because the water is warm it heats up the dry ice which causes it to form a gas. The gas is carbon dioxide.
The temperatures of everything are very strange. The water cannot be cold when trying the experiment because it will not heat up the dry ice and create carbon dioxide gasses but it will probably…
This reaction involves very intricate and steps that are critical to understanding the concept of equilibrium as a whole. First, an important concept to understand when describing any reaction is the idea of collision probability. When we examine gas molecules in a 1 cm3 container, there can be billions of collisions per second between neighboring molecules, and even then, maybe only one of these collisions result in a reaction. If any one collision occurs, the only way they will react to form a…
* Moving coil ratiometers
* Moving magnet ratiometers
THERMOCOUPLE INSTRUMENTS – do not require any external power since a thermocouple is an electrical generator.
CYLINDER HEAD TEMP. (CHT) – For reciprocating engines.
EXHAUST GAS TEMP. (EGT) – For both reciprocating and turbine engines
CONSTANTAN – a copper nickel alloy used as the negative lead of a thermocouple for measuring the CHT of a reciprocating.
CHROMEL – an alloy of nickel and chromium used as the positive…
Among the ferroelectric materials, the static dielectric constant depends on the temperature under the relation:
Curie – Weiss relation: €r = P + Q/ (T-Tc), (T> Tc), P, Q are constants temperature independent.
C = Curie constant
Tc = Curie temperature
A transition in phase is observed at temperature Tc. Above this, the material remains in Paraelectric phase (the phase where the elementary dipoles of different crystal unit cells are…
release rate model.
The cylinder gas is considered as a spatially homogeneous thermodynamic system occupying in a single zone for the compression, expansion, intake, exhaust processes and two zones (burned and unburned zone) for the combustion process. The instantaneous composition of cylinder gases are obtained from the mass fraction of fuel burned. The instantaneous thermodynamic properties are computed by the established equations [20-21, 28]. The instantaneous gas properties are calculated…