Chemistry
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CY 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 64–65 of 65. Imported answers require review unless explicitly marked reviewed.
Question 64
Open questionCYNAT2 marksNeeds review
The Brunauer-Emmett-Teller (BET) surface area measurement data for adsorption of N₂ gas at 77 K on 1.0 g of an adsorbent fits into a straight line, when
is plotted against
. The slope and intercept of the straight line are
and
, respectively. The surface area (in
) of the adsorbent is ______ (rounded off to one decimal place).(Given:
of N₂ gas corresponds to
molecules and each molecule occupies
.
is the volume of gas adsorbed in
,
is
, where
is the pressure of the N₂ gas and
is equilibrium vapour pressure of liquid N₂)Log in to check the answer
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Open questionCYNAT2 marksNeeds review
The orbital angular momentum (L) of an electron is
. The minimum angle between L and its z-component (in degrees) is _____ (rounded off to one decimal place).Log in to check the answer
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