1a-Consider a sealed, well-insulated tank filled with 10 moles of gaseous nitrogen, at sufficiently low pressure that it can be treated as an ideal gas. At an initial time, the methane is at a temperature 300 K. A shaft passes into the tank and performs 100 Joules of shaft work per minute. What is the total change in the internal energy of the tank over 10 minutes, in Joules?
b- For the system in problem 1, what is the temperature of the gas, in Kelvin, after one hour? Assume a constant-volume heat capacity of 20 J mol-1 K-1.
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