Students analyze changing gas pressure during the course of chemical reactions. The Gas Pressure Sensor has enough resolution and range to work for all subject areas. It has enough range for Boyle's law experiments (0 to 2.1 atm), yet provides greatly improved resolution for vapor pressure or pressure-temperature experiments (0.40 mm Hg with LabPro). The connection valve is directly on the sensor box, significantly reducing dead air space. The package includes airtight tubing clamps for transpiration experiments, as well as special fittings for respiration experiments in small containers.
· Investigate the relationship between pressure and volume, Boyle’s law.
· Measure vapor pressure of liquids.
· Study the effect of temperature on gas pressure, Gay-Lussac’s law.
· Monitor the production of O2 during photosynthesis of an aquatic plant in a closed system.
· Determine the rate of transpiration for a plant under different conditions.
· Determine the rate of respiration in germinating pea or bean seeds.
· Monitor the pressure of a confined air pocket as water moves in and out of a semi-permeable membrane by osmosis.
· Study the effect of temperature and concentration on the rate of decomposition of H2O2.
We need 8 of these. When you purchase this item, your money will be deposited in the NEHS Science Dept. bank account and equipment will be purchased on your behalf. Thank you.
