(1) Only need part E and F A heat engine uses a diatomic gas that follows the pV

Question

(1) Only need part E and F

A heat engine uses a diatomic gas that follows the pV cycle in the figure.

PART A

Determine the pressure, volume, and temperature at point 2.

a. p_2 = 256500 Pa, V_2 = 1000 cm^3, T_2 = 845.2 K

b. p_2 = 689600 Pa, V_2 = 1000 cm^3, T_2 = 382.3 K

c. p_2 = 781200 Pa, V_2 = 1000 cm^3, T_2 = 382.3 K

d. p_2 = 696400 Pa, V_2 = 1000 cm^3, T_2 = 522.3 K

PART B

Determine delta E_th, W_s, and Q for the process 1-->2.

a. deltaE_12 = 741.1 J, (W_s)_12 = 0 J, Q_12 = 741.1 J

b. deltaE_12 = 841.1 J, (W_s)_12 = 0 J, Q_12 = 841.1 J

c. deltaE_12 = -741.1 J, (W_s)_12 = 0 J, Q_12 = -741.1 J

d. deltaE_12 = 0 J, (W_s)_12 = 0 J, Q_12 = 741.1 J

A heat engine uses a diatomic gas that follows the pV cycle in the figure. Determine the pressure, volume, and temperature at point 2. p_2 = 256500 Pa, V_2 = 1000 cm^3, T_2 = 845.2 K p_2 = 689600 Pa, V_2 = 1000 cm^3, T_2 = 382.3 K p_2 = 781200 Pa, V_2 = 1000 cm^3, T_2 = 382.3 K p_2 = 696400 Pa, V_2 = 1000 cm^3, T_2 = 522.3 K Determine delta E_th, W_s, and Q for the process 1-->2. Delta E_12 = 741.1 J, (W_s)_12 = 0 J, Q_12 = 741.1 J Delta E_12 = 841.1 J, (W_s)_12 = 0 J, Q_12 = 841.1 J Delta E_12 = -741.1 J, (W_s)_12 = 0 J, Q_12 = -741.1 J Delta E_12 = 0 J, (W_s)_12 = 0 J, Q_12 = 741.1 J Determine , and for the process . /Delta E /rmth,/;W/rms Q 2/rightarrow3 /Delta E23 = /:/:/:/: 741.1/;/.-mJ/ : / : (HQ*, = /:/:/:/: 741.1/;/rmj/ :/:Q23 = 0/;/rmJ /Delta E23 = -741.1 /;/rmJ/ : / : (W8)23 = /:/:/:/: 741.1 /;/rmJ/ :/:Q23 = 0/;/rmJ /Delta E23 = /:/:/:/: 741.1/; /rmJ/ : / : (W8)23 = -741.1 /;/rmJ/ :/:Qx = 0/;/rmJ /Delta E /rmth,/;W/rms Q 3/rightarrow 1 Determine , and for the process . /Delta E31 = 0/;/rmj/:/:/:/:/:/:/:/:/:/: (W8)31=-554.5/:/rmj/:/:/ A/DettaE23 = 0/;/rmJ/:/:/:/:/:/:/:/:/:/: (W8)31, =/:/:/: 554.5/; /rmJ/ :/:Q31, = /:/:/: 554.5/; /rmJ /DettaE31= 254.6/;/rmJ/ :/ : (W8)31 =/:/:/: 254.5/; /rmJ/:/: Q31 = -554.5/;/rmJ How much work does this engine do per cycle? What is its thermal efficiency? The figure shows the pV diagram for a certain thermodynamic process. In this process, 1690 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 6 times 104 Pa. If the volume of the system increases from 0.020 m3 to 8 times 10?2 m3, calculate the change in internal (thermal) energy of the system. If the internal (thermal) energy change is nonzero, be sure to indicate whether this energy change is positive or negative.

Explanation / Answer

1.
p? and p? are given in the figure:
p? = p? = 1atm

To calculate p? use ideal gas law
p

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