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A rigid tank initially contains 2 kg of steam at 500 kPa and 350°C. The steam is then cooled until it is at 100°C. Determine the final pressure and the heat transferred during this process.

Respuesta :

Answer:

299.36 kPa

Explanation:

given mass of steam =2 kg

initial pressure that is [tex]P_1=500kPa[/tex]

initial temperature that is [tex]T_1=350^{\circ} C=350+273=623 K[/tex]

final temperature that is [tex]T_2=100^{\circ} C=100+273=373 K[/tex]

it is a rigid tank so volume is constant

for constant volume process [tex]\frac{P_1}{T_1}=\frac{P_2}{T_2}[/tex]

[tex]P_2=\frac{T_2}{T_1}\times P_1=\frac{373}{623}\times 500=299.36 kPa[/tex]

so the final pressure will be 299.36 kPa

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