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At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant ?
  • a)
    273°C
  • b)
    100°C
  • c)
    200°C
  • d)
    273°K
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
At what temperature, given mass of a gas that occupies a volume of 2 l...
Given: Volume = 2L
At STP, Pressure, P1 = 1 atm and Temperature, T1 = 273 K
Final Volume, V2 = 4L 
To find: Final temperature, T2
Solve: As we know
PV = nRT
Now, for given number of moles at constant pressure volume is directly proportional to temperature. We can write as:

Temperature in degree Celsius = 546-273 = 273 deg C.

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Most Upvoted Answer
At what temperature, given mass of a gas that occupies a volume of 2 l...
Given: Volume = 2L
At STP, Pressure, P1 = 1 atm and Temperature, T1 = 273 K
Final Volume, V2 = 4L 
To find: Final temperature, T2
Solve: As we know
PV = nRT
Now, for given number of moles at constant pressure volume is directly proportional to temperature. We can write as:

Temperature in degree Celsius = 546-273 = 273 deg C.

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