Question

Problem 8 3 Two tanks (A, B) are connected with each other by a valve which is initially closed. The Tank A including 2 kg air at T= 70 °C and P= 200 kPa. Tank B with volume of 2 m³ contains air at T= 28 °C and P= 500 kPa. The valve is opened and the system temperature reaches in equilibrium with environment at T=23 °C. Calculate the final pressure of system and amount of heat transferred through process (Q). A B

          Problem 8
3
Two tanks (A, B) are connected with each other by a valve which is initially closed. The Tank A
including 2 kg air at T= 70 °C and P= 200 kPa. Tank B with volume of 2 m³ contains air at T= 28
°C and P= 500 kPa. The valve is opened and the system temperature reaches in equilibrium with
environment at T=23 °C. Calculate the final pressure of system and amount of heat transferred
through process (Q).
A
B

Problem 8
3
Two tanks (A, B) are connected with each other by a valve which is initially closed. The Tank A
including 2 kg air at T= 70 °C and P= 200 kPa. Tank B with volume of 2 m³ contains air at T= 28
°C and P= 500 kPa. The valve is opened and the system temperature reaches in equilibrium with
environment at T=23 °C. Calculate the final pressure of system and amount of heat transferred
through process (Q).
A
B

Added by Adam J.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Pam Owens

Step 1

Since the mass of air in tank A is given as 2 kg, we can use the ideal gas law to calculate the initial volume of tank A. PV = mRT 200 kPa * V = 2 kg * 8.314 J/(mol*K) * (70 + 273) K V = (2 kg * 8.314 J/(mol*K) * (70 + 273) K) / 200 kPa V = 9.09 m³ Show more…

Show all steps

Thanks for your feedback!

Problem 8 Two tanks (A, B) are connected with each other by a valve which is initially closed. Tank A includes 2 kg of air at T = 70Â°C and P = 200 kPa. Tank B with a volume of 2 mÂ³ contains air at T = 28Â°C and P = 500 kPa. The valve is opened and the system temperature reaches equilibrium with the environment at T = 23Â°C. Calculate the final pressure of the system and the amount of heat transferred through the process (Q). A B