trial_id,description,P_atm,V_L,T_K,n_mol,paired_with
GL1,flask A before compression,1.50,8.00,305,0.500,GL2
GL2,flask A after compression,4.00,unknown,305,0.500,GL1
GL3,balloon B before heating,2.00,2.80,250,0.300,GL4
GL4,balloon B after heating,2.00,unknown,310,0.300,GL3
GL5,tank C before heating,1.10,5.00,290,0.250,GL6
GL6,tank C after heating,unknown,5.00,417,0.250,GL5
GL7,cylinder D initial state,1.20,6.00,290,0.400,GL8
GL8,cylinder D final state,2.80,unknown,350,0.400,GL7
GL9,sealed jar E single state,2.40,7.50,305,unknown,none