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- At 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?(a) Find the density in SI units of air at a pressure of 1.00 atm and a temperature of 20 , assuming that air is 78% N2, 21% O2, and 1% Ar, (b) Find the density of the atmosphere on Venus, assuming that it's 96% CO2 and 4% N2, with a temperature of 737 K and a pressure of 92.0 atm.10. A rigid container holds 2.0 moles of gas at a pressure of 1.0atm and a temperature of 30°C. (a) Whatis the volume of the container? (b) What is the pressure if the temperature is raised to 130°C
- 4. Large helium-filled balloons are used to lift scientific equipment to high altitude. What is the pressure inside such a balloon (in atm) if it starts out at sea level with a temperature of 24.8°C and rises to an altitude where its volume is eighteen times the original volume and its temperature is -35.7°C? 0.04432. A balloon has a volume of 4.0 L when at sea level (1.0 atm) at a room temperature of 28°C What will be its volume when inflated with the same amount of gas at an elevation where the atmospheric pressure is 700 mm Hg at 28°C?12. A 0.030-m³ container is initially evacuated. Then, 4.0 g of water is placed in the container, and, after some time, all the water evaporates. If the temperature of the water vapor is 388 K, what is its pressure?
- An iron bucket has a mass of 2 kg and contains 8 kg of water. If the initial temperatureis 6 ° C, to what temp. will the bucket and water be raised by the addition of 3 kg ofwater at 95° C.s.h.c. iron = 500 J/kg° C,s.h.c. water = 4190 J/kg° C3. A cubic container of volume 2.00 L holds 0.500 mol of nitrogen gas at a temperature of 25.0◦C.What is the net force due to the nitrogen on one wall of the container? Compare this forceto the sample’s weight.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?
- 7. Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), and its temperature is 176 K. The other gas is neon (Ne). What is the temperature of the neon? (The molar mass of Helium is 4.0026 g and that one of Neon is 20.1797 g) K Q A N I @ 2 W S #3 X H ption command E D ARRA $ 4 R LL do LO % 5 Search or type URL T G MacBook Pro ^ 6 B Y H & 7 N U J 2111332 * 00 8 M | ( 9 K H I O ) O L P > a : ; command option { [ ? + 11 11 I7. Two spheres cach 3.0 ft in diameter are connected by a pipe in which there is a valve. Each sphere contains nitrogen gas with sphere A has a temperature of 80°F, while the other is is 120°F. With the valve closed, sphere A has a gage pressure 51.9 psi and the other 10.9 psi. After the valve has been open long enough for equilibrium to obtain, what is the equilibrium temerature if the final pressure is 35.2 psig?4. Air is compressed polytropically so that the quantity PV14 is constant. If 0.02 m3 of air at atmospheric pressure of 101.3 KPA and 4C are compressed to a gage pressure of 405KPAg, determine the final temperature of air in C.