engineering recuitment BPSC AE Mock Test 2025 Thermodynamics Properties of Pure Substances Determination of Dryness Fraction of Steam
Saturated liquid at a high pressure P1 having enthalpy of saturated liquid 1000 kJ/kg, is throttled to a lower pressure P2. At pressure P2, enthalpy of saturated liquid and that of the saturated vapour are 800 kJ/kg and 2800 kJ/kg respectively. The dryness fraction of vapour after throttling process is
1
0.1
2
0.5
3
18/28
4
0.8