Hello,
Initial Volume, V1 = V
Final Volume, V2 = 2V
Initial Temperature, T1 = 17°C
Final Temperature, T2 = ?
According to Charle's Law,
V ∝ T
V1 / T1 = V2 / T2
So, V / 17 = 2V / T2
So, T2 = 17 x 2
So, T2 = 34°C
Hence, at 34°C, the volume of gas will be doubled.
Best Wishes.
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