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**1. Homework Statement**

One cylinder in the diesel engine of a truck has an initial volume of 600 cm^3. Air is admitted to the cylinder at 30 degrees celsius and a pressure of 1.0 atm. The piston rod then does 400 J of work to rapidly compress the air. What are its final temperature and volume?

The answers are 1100 K and 23.9 cm^3

**2. Homework Equations**

In an isobaric process, W = -p delta V

In an isobaric process, V_1 over T_1 = V_2 over T_2

**3. The Attempt at a Solution**

W = -p delta V

400 J = - (600 cm^3 - V_final)

???

Thanks for any help.