Answer Happy

CV = 52R.
(a) Find the specific heat of air at constant volume in units of J/kg · °C. J/kg · °C.(b) Calculate the mass of the air in the cylinder. kg(c) Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 715 K. kJ(d) Assume again the conditions of the initial state and assume the heavy piston is free to move. Find the energy input required to raise the temperature to 715 K. kJ
5. [-/1.33 Points) DETAILS SERPSE 10 20.2.P.012 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A vertical cylinder with a heavy piston contains ar at 280 K. The initial pressure is 2.80 x 105 Pa, and the initial volume is 0.375m? Take the molar mass of air as 28.9 g/mol and assume C (a) Find the specific heat of air at constant volume in units of 3/kg c /kg. C. (b) Calculate the mass of the air in the cylinder, kg (c) Suppose the piston is held fixed. Find the energy input required to raise the temperature of the air to 715 K. (d) Assume again the conditions of the initial state and assume the heavy piston is free to move. Find the energy input required to raise the temperature to 715 K ka Need Help? Fendi