GATE XE · 2025 · XE-E
Question 106: First Law of Thermodynamics
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Question 106
XE-ENAT2 marksNeeds review
A steam boiler contains saturated water vapour at 200 °C. After a certain period, the temperature of the boiler drops to 110 °C. Assume that all the valves of the boiler are closed and the energy is lost as heat to the surroundings. The ratio of mass of liquid to the mass of vapour is ____________ (rounded off to two decimal places).
Saturated volume of vapor phase at 200 °C = 0.127 m
/kgSaturated volume of vapor phase at 110 °C = 1.210 m
/kgSaturated volume of liquid phase at 110 °C = 0.001 m
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2025XE-E
GATE XE 2025 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-E
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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