Acontainer holding 1.5 moles [mol] of oxygen (formula: upper o2, molecular weight equals=32 grams per mole [g/mol]) at a pressure of 2.5 atmospheres [atm] and a temperature of 310 kelvins [k] is heated to 410 kelvins [k], while maintaining constant amount and volume. what is the new pressure inside the container in units of pascals [pa]?

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]