Carbon dioxide at 2 atm and 25°C is stored in a cylinder with a flat, circular plug stopper of vulcanized rubber, 3 cm thick and 2 cm2 in area. Experimental data at 25°C give the solubility of CO2 in rubber as 0.90 cm3 (at 0°C and 1 atm )/cm3 of rubber/atm CO2 and the diffusivity of CO2 in rubber at 0.11 × 10−5 cm2/s , independent of pressure. Neglecting mass transfer resistances in the gas on either side of the stopper and a pressure of 1 atm outside of the cylinder, calculate rate of loss of CO2 from the cylinder in mol/s.

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One of the benefits of working with chlorinated polyvinyl chloride (CPVC) pipe is that it can be cut with a variety of different tools that don’t require any electricity or heat. However, different cutting methods are preferred over others, depending on the application.

When cutting CPVC pipe, it is important to make a square, flat cut. An uneven cut limits the bonding area and weakens the fitting.

To help you make the best possible cut, we’ve put together the following dos and don’ts when cutting CPVC pipe in different situations.