Q: What is the mass density of air at P = 1.
What is the mass density of air at P = 1.0 atm and T = (a) −10°C and (b) 30°C? The average molecular mass of air is approximately 29 u.
See AnswerQ: An ideal gas in a constant-volume gas thermometer (Fig
An ideal gas in a constant-volume gas thermometer (Fig. 13.11) is held at a volume of 0.500 L. As the temperature of the gas is increased by 20.0°C, the mercury level on the right side of the manomete...
See AnswerQ: From the edge of the rooftop of a building, a boy
From the edge of the rooftop of a building, a boy throws a stone at an angle 25.0° above the horizontal. The stone hits the ground 4.20 s later, 105 m away from the base of the building. (Ignore air r...
See AnswerQ: A constant volume gas thermometer containing helium is immersed in boiling ammonia
A constant volume gas thermometer containing helium is immersed in boiling ammonia (−33°C), and the pressure is read once equilibrium is reached. The thermometer is then moved to a bath of boiling wat...
See AnswerQ: A cylinder with an interior cross-sectional area of 70.
A cylinder with an interior cross-sectional area of 70.0 cm2 has a moveable piston of mass 5.40 kg at the top that can move up and down without friction. The cylinder contains 2.25 × 10−3 mol of an id...
See AnswerQ: A hydrogen balloon at Earth's surface has a volume of 5.
A hydrogen balloon at Earth's surface has a volume of 5.0 m3 on a day when the temperature is 27°C and the pressure is 1.00 × 105 N/m2. The balloon rises and expands as the pressure drops. What would...
See AnswerQ: Estimate the average distance between molecules in air at 0.0
Estimate the average distance between molecules in air at 0.0°C and 1.00 atm.
See AnswerQ: An ideal gas that occupies 1.2 m3 at a pressure
An ideal gas that occupies 1.2 m3 at a pressure of 1.0 × 105 Pa and a temperature of 27°C is compressed to a volume of 0.60 m3 and heated to a temperature of 227°C. What is the new pressure?
See AnswerQ: The density of platinum is 21 500 kg/m3. Find
The density of platinum is 21 500 kg/m3. Find the ratio of the volume of 1.00 kg of platinum to the volume of 1.00 kg of aluminum.
See AnswerQ: Show that, in two gases at the same temperature, the
Show that, in two gases at the same temperature, the rms speeds are inversely proportional to the square root of the molecular masses:
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