Explain why real gases deviate from the ideal gas model, most strongly at low temperature and high pressure, in terms of intermolecular forces and the finite volume of the particles, and compare which gases behave most ideally.
Tę umiejętność sprawdza 6 zadań wzorowanych na arkuszach IB z lat 2024–2026.
Methane behaves almost as an ideal gas at room temperature and atmospheric pressure. Under which conditions would the molar volume of methane deviate most from the value predicted for an ideal gas? A. Low temperature and high pressure B. Low temperature and…
Which row shows the gas and the conditions under which its behaviour is closest to that of an ideal gas? A. Hydrogen fluoride, HF, at high pressure and low temperature B. Methane, CH4, at high pressure and low temperature C. Hydrogen fluoride,…
Outline why SO2 shows a greater deviation from the ideal gas model than carbon dioxide, CO2, does.
Under which conditions does the gas behave most like an ideal gas? A. Helium at 200 kPa and 300 K B. Helium at 20 kPa and 600 K C. Sulfur dioxide at 20 kPa and 600 K D. Sulfur dioxide at 200 kPa and 300 K
State one reason why real gases such as butane and ammonia deviate more from ideal behaviour as the pressure increases.
The graph shows the boiling points of the straight-chain alkenes with a terminal double bond, from ethene to hex-1-ene. (i) Explain why the boiling point rises from ethene to but-1-ene. (ii) A sample of but-1-ene is warmed from 250 K to 300 K at constant…
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