Question

b. What's the specific volume at states Tand 2 Sketch the process on a pressure vs. volume graph. Sketch the process on a pressure vs. specific volume graph. c. d. Gas in a cylinder starts with a pressure of 1 bar and a volume of 1 liter, and is compressed by a 8. piston to a pressure of 4.0 bar. During this process = constant. pV What's the volume in liters at 3.0 bar? a. Sketch the process of a pressure vs. volume graph. b. an atmospheric.nressure.of 101.33 kPa. If

I need help with number 8 please. thermodynamics.

Answer 1

a)

given

p x V= constant

so it is a isothermal process

at initial state pressure (p₁) =1 bar

volume (V₁) = 1 liter

we need to find volume at pressure (p₂) = 3 bar

since pV=constant during process

$p_{1\times }V_{1}=p_{2}\times V_{2}$

$1\times 1=3\times V_{2}$

  $V_{2}=0.3 litre$

b)

we can plot the graph using relation

p x V =constant

in the given problem

constant =1

graph is obtained from equation

p x V =1

3.5 pressure (bar) 2 1.5 0.2 0.3 0.4 0.8 0.9 1 0.5 0.6 0.7 volume (litres)