Thermodynamics calculating Pressure temp and Volume?

AI Thread Summary
To calculate T2 and P2 in a thermodynamic system with constant volume, use the equation Q = Cv * ΔT, where Q is the heat added, Cv is the specific heat capacity, and ΔT is the change in temperature. Given that 1440 kJ/kg of heat is added and the specific heat capacity is 0.72 kJ/kgK, T2 can be determined by rearranging the equation to find the change in temperature from T1. For pressure, apply the equation P2 = P1 * (V1/V2)^γ, where γ is the specific heat ratio (1.4). Since V1 equals V2, the pressure P2 can be calculated directly from P1. This approach effectively uses the principles of thermodynamics to solve for the unknown variables.
mm391
Messages
65
Reaction score
0

Homework Statement



Can someone explain how I would calculate T2 and P2 knowing that 1440kJ/kg of heat was added, Specific Heat Capacity is 0.72KJ/KgK and gamma = \mu1.4 and mass = 0.00058kg?

V1 = 0.000005m^3 V2 = V1
T1 = 753K T2 = ?
P1 = 25.12 Bar P2 = ?



Homework Equations



p2=p1*(v1/v2)^1.4

p1*v1/T1=p2*v2/T2

The Attempt at a Solution

 
Physics news on Phys.org
Looks like you have a constant volume process. Therefore Work done = 0, Q= ΔT=Cv*ΔT. You know Q, Cv, and T1 so you can find T2.
 
Back
Top