Chemistry
2022 · Paper 1
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Complete GATE CY 2022 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
In a collection of molecules, each molecule has two non-degenerate energy levels that are separated by 500 cm
. On measuring the population at a particular temperature, it was found that the ground state population is 10 times that of the upper state. The temperature (in K, rounded off to the nearest integer) of measurement is [Given: Value of the Boltzmann constant = 0.695 cm
K
]Log in to check the answer
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Open questionCYNAT2 marksNeeds review
The change in entropy of the surroundings (in J K
, rounded off to two decimal places) to convert 1 mol of supercooled water at 263 K to ice at 263 K at 1 bar is [Consider:
at 273 K = 6.0 kJ mol
, and the molar heat capacity of water is higher than that of ice by 37.0 J K
mol
in the temperature range of 263 K to 273 K]Log in to check the answer
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