A piston/cylinder assembly in a car contains 0.2 L of air

Chapter 3, Problem 163HP

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QUESTION:

Problem 163HP

A piston/cylinder assembly in a car contains 0.2 L of air at 90 kPa and 20°C, as shown in Fig. P3.163. The air is compressed in a quasi-equilibrium polytropic process with polytropic exponent n = 1.25 to a final volume six times smaller. Determine the final pressure and temperature, and the heat transfer for the process.

FIGURE P3.163

Questions & Answers

QUESTION:

Problem 163HP

A piston/cylinder assembly in a car contains 0.2 L of air at 90 kPa and 20°C, as shown in Fig. P3.163. The air is compressed in a quasi-equilibrium polytropic process with polytropic exponent n = 1.25 to a final volume six times smaller. Determine the final pressure and temperature, and the heat transfer for the process.

FIGURE P3.163

ANSWER:

Solution 163 HP

Step 1 of 5

We are required to find the final pressure, temperature, and the heat transfer for the process.

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