During the time 0.305 mol of an ideal gas undergoes an isothermal compression at 22.0C, 392 J of work is done on it by the surroundings. (a) If the final pressure is 1.76 atm, what was the initial pressure? (b) Sketch a pV-diagram for the process.
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During the time 0.305 mol of an ideal gas undergoes
an isothermal compression at 22.0C, 392 J of work is done on it by the
surroundings. (a) If the final pressure is 1.76 atm, what was the initial
pressure? (b) Sketch a pV-diagram for the process.
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- Suppose a monatomic ideal gas is changed from state A to state D by one of the processes shown on the PV diagram. PA Isotherms P₂2 atm P₁ atm A kJ E IN T B C 1 1 L I 4.00L 8.00L 16.0L V where P₁ = 1.10 and P₂ = 2.20. mat is the total work done on the gas if it follows the constant-temperature path AC followed by the constant-pressure path CD?p (kPa) Он 400 5) The figure shows a pV diagram for a cycle of a heat engine for which Q, = 25 J. What is the thermal efficiency of the engine? 200 (Hint: remember to convert cm³ to m³!) A) 17% B) 34% C) 8.5% D) 64% E) 40% 100 V (em³) 200The PV diagram shows the compression of 40.9 moles of an ideal monoatomic gas from state A to state B. Calculate Q, the heat added to the gas in the process A to B. Data: PA= 1.90E+5 N/m2 VA= 1.83E+0 m3 PB= 1.01E+5 N/m2 VB= 8.90E-1 m3›44
- In an isochoric process, one mole of an ideal gas of rigid diatomic molecules at volume V is taken from an initial temperature T to a final temperature 4T. Using the convention that heat is positive when it is absorbed by the system, what is the heat transfer in terms of R and T?A diatomic ideal gas contracts at constant pressure of 159 kPa from 2.7 m³ to 1.7 m³. Calculate the change in the internal energy in kJ during the process.Sketch a PV diagram and find the work done by the gas during the following stages. (a) A gas is expanded from a volume of 1.0 L to 5.5 L at a constant pressure of 5.5 atm. (J) (b) The gas is then cooled at constant volume until the pressure falls to 1.5 atm. (J) (c) The gas is then compressed at a constant pressure of 1.5 atm from a volume of 5.5 L to 1.0 L. (Note: Be careful of signs.) (J) (d) The gas is heated until its pressure increases from 1.5 atm to 5.5 atm at a constant volume. (J) (e) Find the net work done during the complete cycle. (J)
- An ideal monatomic gas undergoes changes in pressure and volume, as shown in the pV diagram below. The initial volume is 0.02 m3 and the final volume is 0.10 m3. The initial pressure is 1 atm and the final pressure is 2 atm. Recall that 1 atm = 101.3 kPa. (a) Calculate the magnitude, or absolute value, of the work done on the gas in this process. Answer = - 13429J (c) The initial temperature of the gas is 308 K. Calculate the temperature of the gas at the end of the process. Answer = 3080 k Just need answer with the following: (d) What is the change in thermal energy for the gas in this process? (e) Calculate the quantity of heat transfer added to (positive) or removed from (negative) the gas during this process.One mole of an ideal gas, for which CV,m = 3/2R, initially at 298 K and 1.00 × 10^5 Pa undergoes a reversible adiabatic compression. At the end of the process, the pressure is 1.00 × 10^6 Pa. Calculate the final temperature of the gas. Calculate q, w, ΔU, and ΔH for this process.