3.6 WP For H,0, determine the specified property at the indicated state.a. T = 140°C, v = 0.5 m³/kg. Find p, in barb. p = 30 MPa, T = 100°C. Find v, in m³/kg.c. p = 10 MPa, T = 485°C. Find v, in m³/kg.d. T = 80°C, x = 0.75. Find p, in bar, and v, in m³/kg.

Answered: 3.6 WP For H,0, determine the specified…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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3.6 WP For H,0, determine the specified property at the indicated state.
a. T = 140°C, v = 0.5 m³/kg. Find p, in bar
b. p = 30 MPa, T = 100°C. Find v, in m³/kg.
c. p = 10 MPa, T = 485°C. Find v, in m³/kg.
d. T = 80°C, x = 0.75. Find p, in bar, and v, in m³/kg.

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(a)

To find:

The pressure in bar for $H_{2} O$ if $T = 140 ° C$ and $v = 0.5 \frac{m^{3}}{kg}$ .

Calculation:

From steam table, the $v_{f} = 1.0435 x 10^{- 3} \frac{m^{3}}{kg}$ at $T = 140 ° C$ , therefore $v_{f} < v$ , therefore the pressure at $T = 140 ° C$ is saturation pressure.

Thus, the saturation pressure $P = 3.613 bar$ at $T = 140 ° C$ from steam table.

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