A teapot with a brewer at the top is used to brew tea, as shown in...

 

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A teapot with a brewer at the top is used to brew tea, as shown in Fig. P3-143. The brewer may partially block the vapor from escaping, causing the pressure in the teapot to rise and an overflow from the service tube to occur. Disregarding thermal expansion and the variation in the amount of water in the service tube to be negligible relative to the amount of water in the teapot, determine the maximum coldwater height that would not cause an overflow at gage pressures of up to 0.32 kPa for the vapor. P, <0.32 kPa (gage) Vapor H Heat FIGURE P3-143 35 3 cm 12 cm A teapot with a brewer at the top is used to brew tea, as shown in Fig. P3-143. The brewer may partially block the vapor from escaping, causing the pressure in the teapot to rise and an overflow from the service tube to occur. Disregarding thermal expansion and the variation in the amount of water in the service tube to be negligible relative to the amount of water in the teapot, determine the maximum coldwater height that would not cause an overflow at gage pressures of up to 0.32 kPa for the vapor. P, <0.32 kPa (gage) Vapor H Heat FIGURE P3-143 35 3 cm 12 cm