The ideal gas equation Quiz
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5 questions, one answer each
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1. What is 40.0 dm³ in m³?
- A. 4.00 × 10⁻² m³
- B. 4.00 × 10⁻⁵ m³
- C. 4.00 × 10⁴ m³
- D. 4.00 × 10⁻¹ m³
2. Which expression gives the volume of n mol of gas at pressure p and temperature T?
- A. V = pnRT
- B. V = nRT/p
- C. V = pRT/n
- D. V = p/nRT
3. A gas occupies 1.00 × 10⁻³ m³ at 200 kPa and 300 K. What amount of gas is present (R = 8.31 J K⁻¹ mol⁻¹)?
- A. 1.25 × 10⁻² mol
- B. 8.02 × 10⁻² mol
- C. 8.02 × 10⁻⁵ mol
- D. 12.5 mol
4. The temperature of a fixed amount of gas in a rigid container rises from 300 K to 450 K. The pressure changes by a factor of
- A. 0.67
- B. 2.25
- C. 1.5
- D. 1.0
5. 0.350 g of a gas occupies 2.50 × 10⁻⁴ m³ at 300 K and 100 kPa. What is its Mr (R = 8.31 J K⁻¹ mol⁻¹)?
- A. 3.49
- B. 349
- C. 0.0287
- D. 34.9