The graph in the figure shows a pV diagram for 4.50 moles of ideal helium (He) gas. Part ca of this process is isothermal. p(Pax 10³) a 1.5 0 0.02 0.08 ➤V(m³) a) Find the temperature of the He at points a, b, and c b) How much heat entered or left the He during segments ab, bc, and ca? In each segment, did the heat enter or leave?

A gas undergoes a thermodynamics expansion process as shown in Figure 1. Process ab represents the output work, process bc represent input work, all three processes involve heat transfer. 75 Pa D Pa 0.0050 m 0.050 m Figure 1 а. What is the work done by the gas along path ca? [0]] b. What is the work done by the gas along path ab? [1.91 J] C. What is the work done by the gas along path bc? [-0.45 J] d. What is the net work done by the gas for the entire thermo cycle? [1. 46 J] 2.

Answer the problem. For helium, R=2.0769 and Cp=5.1926 KJ/kg-K. Three kg of helium operates cycle where the processes are constant volume (1-2): constant pressure (2-3): and constant temperature (3-1). Given that P1=100 kPa T1=300 degree Kelvin, and v1/v3=5, determine the heat added in the cycle.  a. 22.316kJ b. 14.225kJ c. 8.405kJ d. 36.708kJ

A gas sample undergoes the cyclic process ABCA shown in the figure (Figure 1), where AB lies on an adiabat (a specific-heat ratio of y = 1.4). The pressure at point A is 56 kPa. Figure Pressure, p 0 B 2 3 4 Volume, V (L) A 5 1 of 1 Part A Find the pressure at B. Express your answer in kilopascals. PB 530 kPa Submit Part B W Correct Find the net work done on the gas. Express your answer in joules. = Previous Answers Submit VE ΑΣΦ Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Return to Assignment Provide Feedback ? J

At one moment, an ideal gas occupies a volume of 1.2 Liters at a pressure of 2.00x10^5 Pa. It is cooled at constant pressure to a temperature of 1/3 it’s initial temp. A. What is the new volume of the gas (in Liters)? B. How many joules of work were done BY the gas in this process (be careful on whether this quantity is positive or negative)? C. “The internal energy of the gas increased during this process” Is this true or false?

1st Law of Thermodynamics - Cyclic Process 1 In the figure, pressure PA=PB = 4.80 X 105 Pa. pressure P= P =1.6X 10° Pa. Volume VA = VD= 0.0016 m², V = 0.0064 m³ Don't use scientific notations in your answers. Calculate the work done from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit Calculate the heat from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit Pressure Calculate the change in internal energy from A to B. Include a proper sign. Keep 2 decimal places. Enter a number J Submit D m³ 3 B isotherm From B to C is an isothermal (constant temperature) process. Caculate the volume at point C. Keep 5 decimal places. Enter a number Submit C Volume

A container holds 102.9 liters of Oxygen at 268.4K and a pressure of 1.95 atmospheres.  How much heat is required to raise the temperature of this gas to 314.1K, holding the volume constant?  Give your answer in kJ.  Treat the gas as an ideal gas.  Note:  It is understood that your answer is in units of kilo-Joules, however do not explicitly include units in your answer.  Enter only a number.  If you do enter a unit ("kJ" in this case), you answer will be counted wrong.

0.52 mol of argon gas is admitted to an evacuated 3.00 liter (3.00 × 10-3 m3) container at 20.0°C. The gas then undergoes an isobaric process to a temperature of 260°C. What is the final pressure of the gas, in atm? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

Q1 A quantity of 2.5 moles of an ideal gas goes through three processes described by the P-V diagram below. (a) What kind of processes are from A to B, B to C and from C to D? (b) Calculate the temperature at A, B, C and D. (c) Find the work done by the gas in each process. Notes: 1 atm equals 1.013×10³ Pa, and 1 liter equals 1×10-³ m³. P (atm) 2 1 B A 15 C 30 D 45 V (liters)

a. 1 kg of water at 70 oC is poured into a 1 kg copper cup initially at 20 oC. The specific heat of copper is ccopper= 390 J/kgoC⋅ and that of water cwater= 4,186 J/kgoC. What will be the equilibrium temperature of the system? b. From the answer found above, determine how many Joules of heat the cut will receive during this process