A sample of neon gas is contained in a bulb at 150 ºC and 350 kPa. If the pressure drops to 103 kPa, find the new temperature, in degrees Celsius.
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A sample of neon gas is contained in a bulb at 150 ºC and 350 kPa. If the pressure drops to 103 kPa, find the new temperature, in degrees Celsius.
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- 20 moles of oxygen at a temperature of 150.ºC are confined to a rigid container whose volume is 2.00 L. The pressure of the gas is then tripled. What is the new temperature of the gas?An ideal gas has a volume of 1.0 Liter, a pressure of 1.0 atm., and a temperature of 27 o C. If the pressure is increased to 2 atm., and the volume is compressed to 0.6 Liters, what is the final temperature of the gas?Two oxygen tanks are completely closed and not connected from the start. Atmospheric pressure is 101325 Pa. Tank 1 has a volume of 1.089 m³, a pressure of 105.78 kPa and a temperature of 50.30 °C. Tank 2 has a pressure of 60.80 kPa, a temperature of 80.2 °C, and a mass of 1.304 kg. A valve is opened so that the oxygen in the two tanks is mixed. If the temperature of the mixed gas is 80.2 °C. what is the pressure of the mixed gas?
- One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 30.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? °C (b) If the gas is heated so that both the pressure and volume are doubled, what is the final temperature? °C Need Help? Read ItAn oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = 8.31 J mol-1 K-1 molecular mass of O2 = 32 u).A steel-belted radial automobile tire is inflated to a gauge pressure of 2.15 x 105 Pa when the temperature is 60 °F. Later in the day, the temperature rises to 103 °F. Assuming the volume of the tire remains constant, what is the gauge pressure at the elevated temperature? [Hint: Remember that the ideal gas law uses absolute pressure.] Pa
- An ideal gas is held at constant volume. The initial pressure and temperature are 140 Pa and 127 oC. If the pressure is changed to 420 Pa, what is the new temperature in oC ?A bicycle tire is inflated to a gauge pressure of 30.0 psi ata temperature of t 5 0°C. What will its gauge pressure beat 32°C if the tire is considered nonexpandable? (Note:The gauge pressure is the difference between the tire pressure and atmospheric pressure, 14.7 psi.)A tire is filled with air at a pressure of 2.6 atm when its temperature is 20°C. After the car has been driven at high speeds, the tire temperature increases to 73.1C. Assuming that the volume of the tire does not change and that air behaves as an ideal gas, find the final pressure of the air in the tire, after the car has been driven. Hint: P₁ · V₁ = n · R · T₁ Pi Pf. Vf=n·R·Tf
- A volumetric flask made of Pyrex is calibrated at 20.0°C. It is filled to the 235-mL mark with 37.0°C glycerin. After the flask is filled, the glycerin cools and the flask warms so that the combination of glycerin and flask reaches a uniform temperature of 32.0°C. The combination is then cooled back to 20.0°C. (The average volume expansion coefficient of glycerin is 4.85 10-4(°C)−1.) (a) What is the volume of the glycerin when it cools to 20.0°C?Brass 0.030 m 5.0 µm Brass has linear thermal expansion coefficient a = 19 × 10-6rC . The picture shows a design defect in an electrical assembly: if the screw expands enough to touch the surface on the left, a dangerous short circuit will occur. The picture shows the assembly at 15°C. What is the maximum tempe ure the assembly can tolerate? 46.9°C 32.6°C 23.7°C 27.4°C 19.3°C