A gas occupies 3 litres at 0 degree celsius. What volume will it occupy at -20 degree celsius, pressure remaining constant?
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Answer:
2.78 l
Explanation:
Given,
P1 = P2
V1 = 3l
V2 = ?
T1 = 0°C = 273K
T2 = -20°C = 253K
THEREFORE, APPLYING CHARLES' LAW:
V1/T1 = V2/T2
= 3/273 = V2/253
= V2 = 759/273
=> V2 = 2.78l
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