GATE XE 2020 Paper 1 — page 35

Questions 103–105 of 175. Imported answers require review unless explicitly marked reviewed.

A particular gas sample is initially maintained at 600 cm

and 100 kPa. It is compressed during a quasistatic process following the relation

. The compression continues till the volume becomes 200 cm

. The magnitude of the corresponding work transfer (in kJ) (rounded off to 2 decimal places) is ________.

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Carbon dioxide (CO

) enters an adiabatic rigid nozzle steady at 1 MPa and 500 °C with a mass flow rate of 1.5 kg/s. The inlet area of the nozzle is 40 cm

and the exit velocity is 10 times of that at the inlet. If CO

can be considered as an ideal gas with gas constant of 0.19 kJ/kg.K and the ratio of specific heats of 1.29, the exit temperature (in K) (rounded off to 1 decimal place) is ________.

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A closed system containing 8 kg of gas undergoes an expansion process following the relation

. The initial and final pressures are 1 MPa and 5 kPa, respectively, while the initial volume is 1 m

. If the specific internal energy of the gas decreases by 40 kJ/kg during the process, the heat transfer (in kJ) associated with the process (rounded off to 1 decimal place) is ________.

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2020 · Paper 1

Question 16

Question 17

Question 18