In: Physics
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (−196°C) and in boiling pentane (36.1°C). The separate pressures are 0.347 atm and 1.436 atm. Hint: Use the linear relationship P = A + BT, where A and B are constants.
(a) What value of absolute zero does the calibration
yield?
°C
(b) What pressure would be found at the freezing point of
water?
atm
(c) What pressure would be found at the boiling point of
water?
atm
A hollow aluminum cylinder 22.5 cm deep has an internal capacity of 2.000 L at 15.0°C. It is completely filled with turpentine at 15.0°C. The turpentine and the aluminum cylinder are then slowly warmed together to 65.0°C. (The average linear expansion coefficient for aluminum is 24 ✕ 10−6°C−1, and the average volume expansion coefficient for turpentine is 9.0 ✕ 10−4°C−1.)
(a) How much turpentine overflows?
cm3
(b) What is the volume of turpentine remaining in the cylinder at
65.0°C? (Give your answer to at least four significant
figures.)
L
(c) If the combination with this amount of turpentine is then
cooled back to 15.0°C, how far below the cylinder's rim does the
turpentine's surface recede?
cm