Part A 5.0 g of nitrogen gas at 20° C and an initial pressure of 2.2 atm undergo a constant-pressure expansion until the volume has tripled. What is the gas volume after the expansion? Express your answer with the appropriate units. • View Available Hint(s) ol HA ? V = Value Units Submit Part B What is the gas temperature after the expansion? Express your answer in kelvins. • View Available Hint(s) ? T = K

Question 3 0.70 moles of an ideal gas expands adiabatiacally from 1.0 atm to 2.5 atm at a temperature of 30 Celsius. Calculate the values of QW, ΔΗ, Δ S, and Δ G. Use the editor to format your answer

Constants Periodic Table Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. On a warm day (92 °F), an air-filled balloon occupies a volume of 0.300 m³ and has a pressure of 24.0 lb/in?. Part A If the balloon is cooled to 32 °F in a refrigerator while its pressure is reduced to 14.7 lb/in?, what is the volume of the air in the container? (Assume that the air behaves as an ideal gas.) nνα ΑΣφ V = 0.170 m3 Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining

A large cylindrical tank contains 0.750 m³ of nitrogen gas at 22.0°C and 6.50x103 Pa (absolute pressure). The tank has a tight-fitting piston that allows the volume to be changed. Part A What will be the pressure if the volume is decreased to 0.530 m³ and the temperature is increased to 165°C? Express your answer in pascals. —| ΑΣΦ P = Submit Request Answer < Return to Assignment Provide Feedback ? Pa

5.0 g of nitrogen gas at 20°C and an initial pressure of 2.8 atm undergo a constant-pressure expansion until the volume has tripled. Part C How much heat is transferred to the gas to cause this expansion? Express your answer with the appropriate units. ► View Available Hint(s) Qexp 3000 J Submit Previous Answers ✓ Correct The gas pressure is then decreased at constant volume until the original temperature is reached. Part D What is the gas pressure after the decrease? Express your answer with the appropriate units. View Available Hint(s)

A cylinder measuring 8.0 cm wide and 9.5 cm high is filled with gas. The piston is pushed down with a steady force measured to be 19. N. • piston cylinder gas Calculate the pressure of the gas inside the cylinder. Write your answer in units of kilopascals. Round your answer to 2 significant digits. O kPa ?

What is the maximum mass of ethyl alcohol you could boil with 2000 J of heat, starting from 17 °C? Express your answer with the appropriate units. ► View Available Hint(s) μᾶ Value Units ?

I am doing some practice problems to prepare for an exam and i cannot solve this problem, specifically part a but I would like to check this problem A piston cylinder device contains 0.8 kg of air initially at 100 kPa, 27 °C. The air is now compressed slowly in a polytropic process during which PV^1.3 =constant, until the volume reaches 1/2 its original volume. The system is then heated at constant pressure until the volume gets back to its original value. NOTE: THIS IS NOT A CYCLE. Data: Rair = 0.287 kJ/kg K; Cv=0.731 kJ/kg K; Cp=1.018 kJ/kgK. a)  Determine the amounts AND directions of the Work and Heat(each in kJ) for each of the two processes. show all work used to get your values. b)   Sketch the two processes on a P-v diagram, clearly showing all three state points and the two processes with their directions.

Subject: physics

• Part A A gas is in a sealed container. By what factor does the gas temperature change if the volume and pressure are both doubled? η ΑΣφ T Submit Request Answer Part B By what factor does the gas temperature change if the volume is halved and the pressure is tripled? ΑΣφ Submit Request Answer II