Question

14 What is the dryness fraction (x) for saturated water, when
water just starts boiling?
(a) x=0
(b) x = 1
x=0.9
(d) x=0.5
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Answer 1

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Refer to the attachment -

Answer 2

The correct answer is (a) x = 0.

The dryness portion is characterized as the proportion of the mass of dry steam (fume) to joined the mass of dry steam (fume) and mass of fluid in combination. It is indicated by x.

Dryness fraction ( x ) = mass of vapor (mv) mass of vapor (mv) + mass of liquid (ml)

The dryness part of wet steam, addressing the small portion of steam in the combination of water and steam can be estimated by utilizing

(I) Throttling calorimeter and

(ii) Separating and Throttling calorimeter