# Please answer all parts of the question 1st Law of Thermodynamics - Processes of Straight lines...

###### Question:

1st Law of Thermodynamics - Processes of Straight lines on PV diagrams MIN B PtC -V -V The figures show the PV (pressure versus volume) graphs of two processes represented by straight lines The area under the curve equals the work. If volume V inceases (V,> V) in a process, work W is positive. If volume V deceases (V, < V) in a process, work W is negative. Case 1: In the left figure, pressure P, = 3.80 x 10° Pa. pressure PR = 12.16x 10° Pa. Volume V = 0.0012 m?, V = 0.0036 m2. Don't use scientific notations in your answers. Calculate the work done from A to B. Include a proper sign. Keep 2 decimal places. This work is done BY the ideal gas to the outside (Waur). 19 Incorrect (0.0%) Submit (4 attempts remaining) Calculate the work done from B to A. Include a proper sign. Keep 2 decimal places. This work is done ON the ideal gas (Wn) by the outside. Enter a number Submit (5 attempts remaining)
Case 2: In the right figure, pressure P.= 11.88 x 106 Pa. pressure P, = 3.60x 106 Pa. Volume V,= 0.0012 m2, Vn = 0.0036 m3. Calculate the work done from C to D. Include a proper sign. Keep 2 decimal places. Enter a number Submit (5 attempts remaining) Calculate the change in internal energy from C to D. Include a proper sign. Keep 2 decimal places. Enter a number (5 attempts remaining) Submit Calculate the heat from C to D. Include a proper sign. Keep 2 decimal places. Enter a number (5 attempts remaining) Submit

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