Given a cylinder of fixed volume filled with one mile of Ar gas, which of the following is correct? Assume all gases obey the ideal gas law. A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will double. B. If a second mole of At is added to the cylinder the ratio T/P would remain constant C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas because He atoms are smaller than At atoms. D. Two of the above E. None of the above Given a cylinder of fixed volume filled with one mile of Ar gas, which of the following is correct? Assume all gases obey the ideal gas law. A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will double. B. If a second mole of At is added to the cylinder the ratio T/P would remain constant C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas because He atoms are smaller than At atoms. D. Two of the above E. None of the above A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will double. B. If a second mole of At is added to the cylinder the ratio T/P would remain constant C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas because He atoms are smaller than At atoms. D. Two of the above E. None of the above Solution Answer. (Option E). pV = nRT (Ideal Gas Law) Given that, a cylinder of fixed volume which means Volume = constant. A. Incorrect, as the temperature must be converted to Kelvins which will actually be 298 K to 323 K. As we know, pV = nRT, for a constant volume, since the temperature hasn\'t doubled, pressure will not get doubled ( will increase by 323/298 amount). B. Incorrect , as n changes from 1 to 2 in equation pV=nRT , T/p changes from 1 to 0.5 ( as volume remains constant) C. Incorrect, as in accordance with ideal gas law, at equal T,V and P conditions, all the gases will contains equal molecules or atoms. .

1. Given a cylinder of fixed volume filled with one mile of Ar gas, which of the following is
correct? Assume all gases obey the ideal gas law.
A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will
double.
B. If a second mole of At is added to the cylinder the ratio T/P would remain constant
C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas
because He atoms are smaller than At atoms.
D. Two of the above
E. None of the above
Given a cylinder of fixed volume filled with one mile of Ar gas, which of the following is
correct? Assume all gases obey the ideal gas law.
A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will
double.
B. If a second mole of At is added to the cylinder the ratio T/P would remain constant
C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas
because He atoms are smaller than At atoms.
D. Two of the above
E. None of the above
A. If the temp of the cylinder is changed from 25C to 50C the pressure inside the cylinder will
double.
B. If a second mole of At is added to the cylinder the ratio T/P would remain constant
C. A cylinder of identical vol filled with the same pressure of He must contain more atoms of gas
because He atoms are smaller than At atoms.
D. Two of the above
E. None of the above

2. Solution
Answer. (Option E).
pV = nRT (Ideal Gas Law)
Given that,
a cylinder of fixed volume which means Volume = constant.
A. Incorrect, as the temperature must be converted to Kelvins which will actually be 298 K to
323 K.
As we know, pV = nRT, for a constant volume,
since the temperature hasn't doubled, pressure will not get doubled ( will increase by 323/298
amount).
B. Incorrect , as n changes from 1 to 2 in equation pV=nRT ,
T/p changes from 1 to 0.5 ( as volume remains constant)
C. Incorrect, as in accordance with ideal gas law,
at equal T,V and P conditions, all the gases will contains equal molecules or atoms.