Question

In an empty rubber raft the pressure is approximately constant. You push on a large air pump that pushes 1.0 L(1.0× 10−3m3) of air into the raft. You exert a 17 N force while pushing the pump handle 2.0×10−2 m .

A.) Determine the work done on the gas.

I already got A to be .340 Joules

B.) If all of the work is converted to thermal energy of the 1.0 L of gas, what is the temperature increase of the gas? Assume that the air obeys the ideal gas law and is initially at 293 K.

Answer 1

a) work done = Fd =( 17 N 2x10 -2) 0340 J Calculate the number of moles in the gas 1.013x10 atm (1x10-)-n(8.314)(293 K) As given in the question, n 0.0416 mol RdT 0 340 J d2(0.340 J) 3(0.0416) (8314) -0.655 K