Taking the volume of hydrogen as calculated in Q.19,what change must be made in Kelvin (absolute) temperature to return the volume to 2500cm3 (pressure remaining constant).
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V1 = 714.29 cm3
P1 = P2 = P
T1 = 273 K
V2 = 2500 cm3
T2= ?
P1V1 = P2V2
T1 T2
P x 714.29 = P x 2500
273 T2
T2 = 273 x 3.5
= 955.5
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