Compressed gas

The pressure vessel contains a compressed gas at a temperature t1 = 27°C and a pressure p1 = 4 MPa. How much does its pressure change when we release half the amount of gas and its temperature drops to t2 = 15°C?

Correct answer:

p2 =  1.92 MPa

Step-by-step explanation:

t1=27°CK=27+273.16 K=300.16 K p1=4 MPa t2=15°CK=15+273.16 K=288.16 K  V2=2 V1  TpV=konst t1p1 V1=t2p2 V2 t1p1 V1=t2p2 2 V1 t1p1=t2p2 2  p2=2 t1t2 p1=2 300.16288.16 4=9381801 MPa=1.92 MPa

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