Engineering Sciences
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 91–93 of 175. Imported answers require review unless explicitly marked reviewed.
Question 4
Open questionXE-EMCQ1 markNeeds review
For a refrigerator absorb heat
from a cold region and rejecting heat
to a hot region, the coefficient of performance is written asYour answerChoose one option.
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The value of the compressibility factor at the critical point evaluated using the van der Waals equation of state is
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Open questionXE-EMCQ1 markNeeds review
The vapour pressure of a liquid at 8 °C is 2.7 kPa. Its enthalpy of vaporization is constant and equal to 4700 kJ/kmol. Take R = 8.314 kJ/kmol.K. The temperature (in °C) at a vapour pressure of 13.5 kPa is
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