Question #52511

Two tanks are connected by a valve. One tank contains 2 kg of CO2 at 77°C and 0.7 atm. The other tank has 8 kg of the same gas at 27°C and 1.2 atm. The valve is opened and gases are allowed to mix while receiving energy by heat transfer from the surroundings. The final equilibrium temperature is 42°C.
Using ideal gas model, determine:
a) the final equilibrium pressure
b) the heat transfer for the process.

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