A large tank contains 1000 moles of air at 525 degrees celsius. Air is drawn out of this tank at 10 moles/s and replaced with ambient air at 25 degrees celsius. Assume air in tank is mixed and that air is an ideal diatomic gas. For a heated tank what heat rate must be applied to keep the tank air temperature constant? For a perfectly insulated tank, what is the tank air temperature after 100 seconds? The pressure in the tank is not given, explain why it is not needed?