Part A The temperature of an ideal gas is increased from 150 °C to 300 °C while the volume and the number of moles stay constant. By what factor does the pressure change? ΑΣφ P2 P1 Submit Request Answer

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A 2100 cm³ container holds 0.10 mol of helium gas at 350°C. Part A How much work must be done to compress the gas to 1200 Cm² at constant pressure? Express your answer with the appropriate units. ▸ View Available Hint(s) W = 220 J ✓ Correct Part B Previous Answers How much work must be done to compress the gas to 1200 Cm³ at constant temperature? Express your answer with the appropriate units. ► View Available Hint(s) W = Submit μA Value Previous Answers Units ? X Incorrect; Try Again; 4 attempts remaining

A 22-cm-diameter vertical cylinder is sealed at the top by a frictionless 16 kg piston. The piston is 79 cm above the bottom when the gas temperature is 303° C. The air above the piston is at 1.00 atm pressure. Part A What is the gas pressure inside the cylinder? Express your answer with the appropriate units. ► View Available Hint(s) Po = Submit Part B μÀ Value Units ? What will the height of the piston be if the temperature is lowered to 13°C? Express your answer with the appropriate units.

For a planet to have an atmosphere, gravity must be sufficient to keep the gas from escaping The escape speed a particle needs to escape the earth's gravitational attraction is 1.1 x 10 m/s. The motion of projectiles never depends on mass, so this escape speed applies equally to rockets and to molecules in the earth's upper atmosphere. Part A At what temperature does the rms speed of nitrogen molecules equal the escape speed? Express your answer in kelvins. ΜΕ ΑΣΦΑ T- Submit Part B T- Request An At what temperature does the mms speed of hydrogen molecules equal the escape speed? Express your answer in kelvins. VAZO Submit ? K K

An ideal gas at 20°C consists of 2.2 x 1022 atoms. 3.2 J of thermal energy are removed from the gas. Part A What is the new temperature in °C? Express your answer in degrees Celsius. DA ΑΣφ T = °C Submit Request Answer

Part C Some hydrogen gas is enclosed within a chamber being held at 200°C with a volume of 0.0250 m³. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50 × 106 Pa (14.8 atm). The piston is slowly extracted until the pressure in the gas falls to 0.950 x 106 Pa. What is the final volume V₂ of the container? Assume that no gas escapes and that the temperature remains at 200°C. Enter your answer numerically in cubic meters. ► View Available Hint(s) V₂ = Submit [5] ΑΣΦ ? m³

4.5 mol of monatomic gas A interacts with 2.9 mol of monatomic gas B. Gas A initially has 9000 J of thermal energy, but in the process of coming to thermal equilibrium it transfers 800 J of heat energy to gas B. How much thermal energy did gas B have initially? Express your answer with the appropriate units. ► View Available Hint(s) EBi = Submit Value 4 Previous Answers Units ?