Answer:
The initial temperature was 234K
Step-by-step explanation:
We use the gas formula, which results from the combination of the Boyle, Charles and Gay-Lussac laws. According to which at a constant mass, temperature, pressure and volume vary, keeping constant PV / T
(P1xV1)/T1=(P2xV2)/T2
(16atmx84L)/T1= (17atmx 96 L)/284K
1344atmx L/T1= 5,75 atm x L/K
T1= 1344atmx L/5,75 atm x L/K= 233,74K