Relate temperature in kelvin to the average kinetic energy of particles, convert between the Celsius and Kelvin scales, and interpret heating and cooling curves where temperature stays constant during a change of state.
Tę umiejętność sprawdzają 3 zadania wzorowane na arkuszach IB z lat 2023–2025.
The amount of NO2 prepared was checked by titration. The gas was first absorbed in water: 2 NO2(g) + H2O(l) → HNO3(aq) + HNO2(aq) The resulting solution was made up to 200.0 cm3 in a volumetric flask, and 20.0 cm3 portions…
An ideal gas is held in a rigid, sealed container at 27 °C, where its pressure is P Pa. The container is then cooled to −3 °C. Which expression best describes the new pressure of the gas? A. Slightly less than P B. Slightly more than P C. One ninth of…
The temperature of a sample of an ideal gas falls from 600 K to 150 K. How does the average kinetic energy of the gas particles change? A. It decreases by a factor of 2 B. It decreases by a factor of 4 C. It decreases by a factor of 16 D. It does not change…
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