A spherical balloon is 40 ft in diameter and surrounded by air at 60˚F and 29.92 in Hg absolute. a. If the balloon is filled with hydrogen at a temperature of 70 ˚F and atmospheric pressure, what total load (in pounds) can it lift?   b. If it contains helium instead of hydrogen and other condition remains the same, what load (in pounds) can it lift?

12. A 2.00-m^3 weather balloon is loosely filled with helium at 1 atm (76 cm Hg) and at 27° C. At an elevation of 20, 000 ft, the atmospheric pressure is down to 38 cm Hg and the helium has expanded, being under no constraint from the confining bag. If the temperature at this elevation is 48 °C, the gas volume (in m^3) is: O A. 23 В. 2.5 С. 3 O D. 4 O E. 5.3

I Review I Cons A weather balloon rises through the atmosphere, its volume expanding from 3.6 m to 12 m3 as the temperature drops from 20 °C to -10 °C. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. If the initial gas pressure inside the balloon is 1.0 atm, what is the final pressure? Express your answer in atmospheres. n ΑΣφ ? P = atm Submit Request Answer

A rigid container contains an ideal gas at 1325 ° C and 205 kPa gauge. The gas is cooled until the gauge pressure is 55 kPa. If the atmospheric pressure is 115 kPa, determine the final temperature of the gas.

S. At a temperature of 22.20°C the hole in a steel plate has a diameter of 1.030 cm. If a steel rod with a diameter of 1.038 cm has to just slip through this hole, to what temperature should the plate be heated? The coefficient of area expansion of steel is 24 X 10 -6/ °C. Ans: 672

63.0 L of oxygen at 21.0°C and an absolute pressure of 2.55atm are compressed to 38.3L and at the same time, the temperature is raised to 53.0°C. What will the new pressure be? P= atm

Q1/ A volume of the vessel A is 0.3 m' contains ammonia at 25 °C, 90% quality. The pressure of cylinder B will be floated at 200 kPa, cylinder B in the beginning is empty. The air is flowed into cylinder B when the valve is opened and reaches to equilibrium state of 200 kPa, 25 °C. Determine the heat transfer during the process.

An airship has an internal volume of 450,000 m3. How many grams of hydrogen gas can be contained in the airship at 0.90 atm and 30.0 °C? Select one: a.1.6 × 104 g b.3.3 × 107 g c.3.3 × 104 g d.1.6 × 107 g

In this problem you will consider the effect that thermal expansion due to temperature will have on Archimedes' principle. Take the densities of water and copper at 0ºC to be 1.00 × 103 kg/m3 and 8.90 × 103 kg/m3, respectively. a.  Calculate the fraction of a copper block’s weight that is supported by the buoyant force at 0°C.  b. Calculate the fraction of a copper block’s weight that is supported by the buoyant force at 95°C. Assume the volume expansion coefficient of copper is βC = 5.10 × 10-5 1/°C.

A student walking to class on a cold day (To = 4 °C) find a silver ring with an inner diameter of D = 1.85 cm. The silver has a coefficient of linear expansion of α = 18.6 × 10-6 1/C. a. Input an expression for the rings inner diameter Dh when the student warms it to their body temperature, Tb.  b. What is the change in diameter, in units of millimeters, if Tb = 37 °C?