MPSC Rajyaseva 2021 CSAT — Question 31
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7 ग्रॅम वायुरूप नायट्रोजनचे N₂, 2 atm दाबान आणि 546 K तापमानात _______ dm³ इतके घनफळ असते. 7 g of gaseous nitrogen N₂ occupies _______ dm³ at 546 K and 2 atm.
1)5.6✓ Correct
2)11.2
3)22.4
4)313.6
Using the Ideal Gas Law (PV = nRT), moles of N2 (n = 7/28 = 0.25 mol), P = 2 atm, T = 546 K, R = 0.0821. Solving gives V = 5.6 dm³.