Chemistry
2021 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CY 2021 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 54
Open questionCYNAT2 marksNeeds review
2 L of a gas at 1 atm pressure is reversibly heated to reach a final volume of 3.5 L. The absolute value of the work done on the gas (rounded off to the nearest integer) is ______ Joules.
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Open questionCYNAT2 marksNeeds review
The quantity of the cobalt ore [Co₃(AsO₄)₂·H₂O] required to obtain 1 kg of cobalt (rounded off to two decimal places) is __________ kg.
[Atomic Wt. of Co = 59, As = 75, O = 16, H = 1]
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