لخّصلي

Experimental Procedure:

1.Place the pellet into the pan; attach the ignition wire to the calorimeter lead connections so that there are no kinks or sharp bends, and slide the fasteners over the ignition wire to secure it to the calorimeter leads.Unscrew the knurled venting nut carefully to release the pressure and thus flush most of the air out of the bomb.Hand-tighten the knurled venting nut.Pressurize the bomb to 400 psi of O2 (about 30 atm).2.3.4.5.6.

Experimental Procedure:

1. 
   

   Press a pellet of mass 0.1g to 0.2 g of the sample (or use a pre-pressed pellet, if available).

   
   


2. 
   

   Place the pellet into the pan; attach the ignition wire to the calorimeter lead connections so that there are no kinks or sharp bends, and slide the fasteners over the ignition wire to secure it to the calorimeter leads. Make sure that the wire does not touch the pan, or else it will short circuit and burn through rather than ignite your sample.

   
   


3. 
   

   Close the bomb, and screw on the cap.

   
   


4. 
   

   Hand-tighten the knurled venting nut. Attach the bomb to the oxygen filling line. Consult an instructor at this point.

   
   


5. 
   

   Pressurize the bomb to 400 psi of O₂ (about 30 atm).

   
   


6. 
   

   Unscrew the knurled venting nut carefully to release the pressure and thus flush most of the air out of the bomb. When the bomb pressure has fallen back to the ambient pressure, hand- tighten the knurled venting nut, and repeat this procedure