ACSEE (Form 6) Heat (Thermometers and First Law of Thermodynamics) — practice questions

1. A tyre bursting is sudden, so no appreciable heat is exchanged with the surroundings. 2. A process with no heat transfer is adiabatic, not isothermal and not isobaric. 3. The adiabatic relation between pressure and temperature is $P^{\gamma-1}T^{-\gamma}=K$. 4. Equivalently $T_1^{\gamma}P_1^{1-\gamma}=T_2^{\gamma}P_2^{1-\gamma}$ connects the two states. 5. Boyle's law holds the temperature fixed and the pressure law holds the volume fixed, so neither describes a burst; both were recorded errors. _Source: NECTA ACSEE 2023 Physics 131/1, Question 5:Heat (Thermometers and First law of Thermodynamics)_

1. The triple point is a single, uniquely defined set of conditions of temperature and pressure. 2. At that point the solid, liquid and vapour states of the substance all coexist in equilibrium. 3. Because it is unique and reproducible, it serves as a fixed point for temperature scales. 4. Describing it as heating water from 0°C to 100°C was a recorded answer and confuses it with the range between the ice and steam points. 5. It is a separate idea from a thermometric property, which is a physical property varying linearly and continuously with temperature. _Source: NECTA ACSEE 2023 Physics 131/1, Question 5:Heat (Thermometers and First law of Thermodynamics)_

1. A thermometer works by reading some property that responds to temperature. 2. For that reading to be useful the property must change continuously, with no jumps. 3. It must also change linearly, so equal temperature changes give equal changes in the property. 4. Resistance in a resistance thermometer and gas pressure in a constant-volume gas thermometer both qualify. 5. A property that stayed constant or varied randomly could carry no temperature information at all. _Source: NECTA ACSEE 2023 Physics 131/1, Question 5:Heat (Thermometers and First law of Thermodynamics)_