In an empty rubber raft the pressure is approximately constant. You push on a la

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× 10^3m^3) of air into the raft. You exert a 16 N force while pushing the pump handle 4.0×102 m .

A) Determine the work done on the gas.

Express your answer to two significant figures and include the appropriate units.

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.

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

A) The work done is just 16N x 0.04m = 0.64 N

B) PV1=RT1

PV2=RT2 from these two equations, T2=T1* V2/V1 = 293K

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