Sub-topic 1
2024 · National Preliminary
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Isothermal gas process: boyle's law ($p_1v_1 = p_2v_2$)
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Sub-topic 2
2024 · National Preliminary
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Direction of heat flow: true/false
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Sub-topic 3
2024 · National Preliminary
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Identifying the correct heat-capacity formula: true/false
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Sub-topic 4
2026 · National Preliminary
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Work done by an ideal gas in an isobaric process: $W = P\Delta V$
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Sub-topic 5
2026 · National Preliminary
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Work done by an ideal gas in an isobaric process: $W = P\Delta V$
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Sub-topic 6
2025 · National Semifinal
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Critical temperature and pressure of water
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Sub-topic 7
2026 · National Quarterfinal
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Entropy change at constant volume from a temperature-dependent internal energy
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Sub-topic 8
2023 · National One-Eighth
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Properties of an isobaric process (true/false)
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Sub-topic 9
2023 · National One-Eighth
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Riddle: boyle's law
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Sub-topic 10
2021 · National Preliminary
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Work done by a gas in an isobaric process
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Sub-topic 11
2021 · National Preliminary
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Identifying renewable versus non-renewable energy sources (true/false)
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Sub-topic 12
2026 · National Preliminary
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Applying boyle's law, charles's law and the combined gas law to find an unknown gas variable
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Sub-topic 13
2024 · National Preliminary
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Applying boyle's law, charles's law and the combined gas law to find an unknown gas variable
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Sub-topic 14
2024 · National Preliminary
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Applying boyle's law, charles's law and the combined gas law to find an unknown gas variable
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Sub-topic 15
2023 · National Preliminary
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Applying boyle's law, charles's law and the combined gas law to find an unknown gas variable
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Sub-topic 16
2023 · National Preliminary
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Applying boyle's law, charles's law and the combined gas law to find an unknown gas variable
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Sub-topic 17
2024 · National One-Eighth
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Relationship between vapor pressure and boiling point (true/false)
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Sub-topic 18
2024 · National One-Eighth
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Work done by an ideal gas in an isobaric expansion
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Sub-topic 19
2026 · National Preliminary
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Riddle: the isobaric thermodynamic process
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Sub-topic 20
2025 · National One-Eighth
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Riddle: the isobaric thermodynamic process
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Sub-topic 21
2023 · National Preliminary
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Internal energy of an ideal gas depends only on temperature, not pressure or volume (true/false)
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Sub-topic 22
2023 · National Preliminary
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Riddle: pressure, dimensionally equivalent to energy density
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Sub-topic 23
2003 · National Semifinal
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Moles of a gas from pressure, volume and temperature using the ideal gas law
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Sub-topic 24
2013 · National Preliminary
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Problem of the day: first law of thermodynamics and heat-engine power/efficiency
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Sub-topic 25
2013 · National Preliminary
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Saturated vapour in equilibrium with its liquid (true/false)
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Sub-topic 26
2013 · National Preliminary
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An ideal gas does not condense on cooling (true/false)
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Sub-topic 27
2013 · National Preliminary
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Internal energy of an ideal gas depends only on temperature (true/false)
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Sub-topic 28
2013 · National Preliminary
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Boyle's law: $V$ versus $\dfrac{1}{P}$ is linear at constant temperature (true/false)
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Sub-topic 29
2013 · National Semifinal
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Pressure cooker raising boiling point at high altitude
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Sub-topic 30
2016 · National One-Eighth
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Riddle: the van der waals gas equation of state
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Sub-topic 31
2017 · National Quarterfinal
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Work done by an ideal gas during isobaric expansion
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Sub-topic 32
2018 · National Preliminary
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Boyle's law: halving volume at constant temperature requires doubling pressure (true/false)
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Sub-topic 33
2020 · National One-Eighth
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Work done by an ideal gas during isobaric expansion
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Sub-topic 34
2020 · National One-Eighth
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Pressure of an isobaric process from volume change and work done
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Sub-topic 35
2020 · National One-Eighth
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Final volume of an isobaric process from initial volume, pressure and work done
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Sub-topic 36
2020 · National One-Eighth
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Diatomic $C_v$ is not exactly twice monatomic $C_v$ (true/false)
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Sub-topic 37
2020 · National One-Eighth
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Diatomic $C_v$ exceeds monatomic $C_v$ due to extra degrees of freedom (true/false)
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Sub-topic 38
2021 · National Quarterfinal
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Identifying which p-v-t-n graph pairs are non-linear for an ideal gas
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Sub-topic 39
2021 · National Quarterfinal
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Pressure from evaporated liquid oxygen in an evacuated flask, via $PV = nRT$
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Sub-topic 40
2021 · National Quarterfinal
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Total pressure of a mixed argon-oxygen flask after adding oxygen gas
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Sub-topic 41
2021 · National Preliminary
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Internal energy of a monoatomic ideal gas from moles and temperature
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Sub-topic 42
2021 · National Semifinal
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Volume of a given amount of gas at a stated temperature and pressure
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Sub-topic 43
2022 · National Preliminary
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Riddle: boiling point, the phase-change temperature famously 100 for water
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Sub-topic 44
2022 · National Preliminary
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Riddle: an ideal gas, whose constituents are delocalized in a volume much larger than themselves
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Sub-topic 45
2022 · National Preliminary
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Final volume of an isothermal gas process
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Sub-topic 46
2022 · National Preliminary
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Final temperature of an isometric (constant-volume) gas process, variant $120 \to 180\text{ kPa}$
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Sub-topic 47
2022 · National Preliminary
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Final pressure of an isometric gas process, variant $200 \to 250\text{ K}$
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Sub-topic 48
2022 · National Preliminary
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Initial temperature of an isometric gas process, variant $100 \to 150\text{ kPa}$
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Sub-topic 49
2023 · National Preliminary
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Riddle: heat, the energy transferred between systems due to a temperature difference
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Sub-topic 50
2023 · National Preliminary
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Final pressure of a gas compressed at constant temperature, via boyle's law
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Sub-topic 51
2023 · National Preliminary
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True or false: the rate of change of pressure equals energy density
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Sub-topic 52
2023 · National One-Eighth
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True or false: the heat rejected exceeds the useful work done for this engine
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Sub-topic 53
2023 · National Preliminary
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True or false: at absolute zero, a fixed quantity of an object has zero volume
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Sub-topic 54
2023 · National Preliminary
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True or false: at absolute zero, the total energy of a fixed quantity of gas is zero
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Sub-topic 55
2023 · National Preliminary
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True or false: at absolute zero, the total energy of a fixed quantity of gas is minimum
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Sub-topic 56
2023 · National Preliminary
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Riddle: an ideal gas, of non-interacting particles undergoing elastic collisions
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