Engineering Sciences
2024 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 106–108 of 175. Imported answers require review unless explicitly marked reviewed.
Question 106
Open questionXE-ENAT2 marksNeeds review
The melting point of a substance at 1 bar is 273 K. The following property data is available for this substance at 1 bar.
Property | Value |
|---|---|
Density of the solid phase | 900 kg/m³ |
Density of the liquid phase | 1000 kg/m³ |
Latent heat for melting | 300 kJ/kg |
Assuming that the above properties are constant, the melting point (in K) of the substance at 101 bar is ________ (rounded off to two decimal places).
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Open questionXE-ENAT2 marksNeeds review
100 moles of moist air at 70% relative humidity is cooled from 70 °C to 50 °C at a constant pressure of 1 bar. The vapour pressures of water are given in the table. The number of moles of water left in the moist air at the end of this process is ________ (rounded off to two decimal places).
Temperature (°C) | Vapour Pressure (kPa) |
|---|---|
50 | 12.34 |
70 | 31.16 |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 108
Open questionXE-ENAT2 marksNeeds review
A rigid insulated tank containing an ideal gas at 300 K and 1 bar is being filled from an external pressurized line supplying the same gas at 300 K and 10 bar. When the mass of gas inside the tank has doubled, its temperature (in K) is ________ (rounded off to the nearest integer).
Assume ratio of specific heats to be constant for this process and equal to 1.4.
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