A piston–cylinder device contains steam initially at 1 MPa, 450oC, and 3.0 m3. Steam is allowed to cool at constant pressure until it first starts condensing. The figure shows the process on a T-v diagram with respect to saturation lines. Determine (a) the mass of the steam, (b) the final temperature, and (c) the amount of heat transfer.

A piston–cylinder device contains steam initially at 1 MPa, 450oC, and 3.0 m3. Steam is allowed to cool at constant pressure until it first starts condensing. The figure shows the process on a T-v diagram with respect to saturation lines. Determine (a) the mass of the steam, (b) the final temperature, and (c) the amount of heat transfer.

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Question

A piston–cylinder device contains steam initially at 1 MPa, 450^oC, and 3.0 m³. Steam is allowed to cool at constant pressure until it first starts condensing. The figure shows the process on a T-v diagram with respect to saturation lines. Determine (a) the mass of the steam, (b) the final temperature, and (c) the amount of heat transfer.