
4. (10 pts) A balloon is filled with 2.16 mol of He and 1.62 mol N2...
A balloon containing 4.00 moles of N2 gas has a volume of 0.750 L at a pressure of 1.00 atm and a temperature of 27°C. What will the new volume of the balloon be, in liters, if the pressure is doubled to 2.00 atm, the temperature is increased to 127°C, and 1.50 moles of N2 is removed from the balloon? On an airliner, an inflated toy has a volume of 0.310 L at 25°C and 745 mmHg. During flight, the...
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1. A weather balloon with a volume of 200.0 L is filled with air and launched at 20°C at sea level, where the atmospheric pressure is 1.00 atm. What is the volume of the balloon where the atmospheric pressure is 63 mmHg and the temperature is 220K? (5 pts) Hint: you need to find the number of moles of air first. 2. Use the following enthalpies of formation to calculate an approximate enthalpy of reaction, AHrxn for:...
1. A balloon at 0.98 atm contains 0.16 mol of CH4, 0.23 mol of N2, 0.012 mol of He and 0.018 mol of H2. What are the partial pressure of each gas?
A balloon filled with Helium (M=4g/mol) has diameter of .5m at sea level. For this problem, we'll assume a balloon can expand or contract when the outside pressure decreases or increases, so that internal pressure is always equal to the outside pressure. A) when the balloon is immersed in water to a depth of 1.5m, what is the new diameter? B) If the same balloon is released, and floats up to an elevation of 1500m (rising through air with constant...
1) A cylinder is filled with 0.10 mol of an ideal gas at
standard temperature and pressure, and a 1.4-kg piston seals the
gas in the cylinder (see figure) with a frictionless seal. The
trapped column of gas is 2.1-m high. The piston and cylinder are
surrounded by air, also at standard temperature and pressure. The
piston is released from rest and starts to fall. The motion of the
piston ceases after the oscillations stop with the piston and the...
A balloon filled with helium has a volume of 5.20 L and a pressure of 1248 mmHg when it is inflated on a cool 56 degree F morning. It is ties to a mailbox in the sun, and the balloon heats up to a temperature of 95 degree F and the pressure increases to 2.00 atm. What is the new volume of the balloon?
7. A balloon at 0.98 atm contains 0.16 mol of CH4, 0.23 mol of N2, 0.012 mol of He and 0.018 mol of H2. What are the partial pressure of each gas? 8. A gas in a 2.00 L of ballon weigh 7.14 g at 2.00 atm and 27.0 C. What is the molar mass of the gas? 9. Sulfuric acid (H2SO4), the industrial chemical produced in greatest quantity (almost 45 million tons per year in the United States alone),...
1) A weather balloon filled with He gas to a volume of 262 L on a day when the temperature was 18°C. The balloon was only released the next day when the temperature was -10°C. Calculate the new volume of the weather balloon. Assume that the atmospheric pressure remained the same on both days. 2) The volume of an empty flask with a one-holed stopper was 285 ml (V1). You heated the flask for 1 minute (T1) and then cooled...
A spherical balloon with a radius of 15.0 cm is filled with oxygen gas at atmospheric pressure and at a temperature of 15.2°C. (a) What is the number of molecules of oxygen in the balloon? (b) What is the average kinetic energy of oxygen in the balloon? (c) What is the rms speed of oxygen in the balloon?
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 × 10-4 mol/L A deep- sea diver breathes compressed air with the partial pressure of N2 equal to 4.3 atm. Assume that the total volume of blood in the body is 5.4 L. Calculate the amount of N2 gas released (in liters at 37°C and 1.00 atm) when the diver returns to the surface of the water, where the partial pressure of...