Chemistry - Ideal Gas Question with Solution | TestHub

ChemistryIdeal GasMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasynumerical

Calculate the number of hours of service that can be derived at 1 atm, $300 K$ from an acetylene lamp containing $640 g$ calcium carbide. Given that the lamp requires $50 L$ acetylene gas at 1 atm $300 K$ for one hour. [Take $0.0821 \times 300 = 25]$

Answer:

5.00

Solution:

$C a C_{2} + 2 H_{2} O \to C a {(O H)}_{2} + C_{2} H_{2}$

moles of $C a C_{2} = \frac{640}{64} = 10$

$∴$ moles of C₂H₂formed = 10

$∴ V_{C_{2} H_{2}}$ = 10 × 0.0821 × 300 = 250 Litres

$∴$ number of hours = $\frac{250}{50} = 5$

Stream:NTA_ABHYASSubject:ChemistryTopic:Ideal GasSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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