A 6.35 L sample of carbon monoxide is collected at 55.0◦C and 0.892 atm. What volume will the gas occupy at 1.05 atm and 59.0◦C?
1. 1.96 L 2. 6.68 L 3. 5.46 L 4. 6.10 L 5. 4.82 L
1 answer:
Answer: option 3. 5.46 L
Explanation:
1)<u> Data</u>
2) <u>Chemical principle</u>
<u />
- Combined law for ideal gases:
3) <u>Solution</u>
a) Conversion of units
The ideal gas law is valid for temperature in absolute units (Kelvin); hence, you have to converte °C to K.
- T₁ = 55.0 + 273.15 K = 328.15 K
- T₂ = 59.0 + 273.15 K = 332.15 K
b) Clear V₂ from the combined law of gases
c) Substitute values and compute
The answer must be reported with three significant figures, which is the number used for the data.
Answer: the gas will ocupy 5.46 liter at the new condictions of pressure and temperature.
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