The pressure of a gas filled in a closed vessel increase by 0.4% when temperature is increased by `1^(@) C`. Find the initial temperature of the gas.
The pressure of a gas filled in a closed vessel increase by 0.4% when temperature is increased by `1^(@) C`. Find the initial temperature of the gas.
A. `23^(@)C`
B. `250^(@)C`
C. `-23^(@)C`
D. `300K`
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Correct Answer - C
`(DeltaT)/(T)=(DeltaP)/(P)`
`=(0.4)/(100)=(4)/(1000)`
`(1)/(T)=(1)/(250)`
`T=250K`
`t=250-273=-23^(@)C`.
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