Lock the two definitions first Memorise the exact statements for temperature and thermal equilibrium before solving anything. In every question, first check whether the stem is asking about heat flow or about equality of temperature; the usual trap is to answer in terms of heat content even when the required condition is only no heat flow.

Read Kelvin as the working scale Keep Kelvin as the default scale for physics reasoning, especially when the stem uses absolute temperature, kinetic theory, or later thermodynamic formulas. The condition to check is whether the question is about a ratio or proportionality in T; the trap is to insert Celsius where only Kelvin keeps the relation valid.

Connect temperature with molecular motion Revise that temperature tracks average translational kinetic energy of molecules in kinetic theory. Whenever a gas question says average translational kinetic energy doubles, recognise instantly that absolute temperature doubles; the trap is to treat temperature as total energy of the sample rather than an average molecular measure.

Use equilibrium language precisely In contact problems, mark the moment when heat flow stops and write the common final temperature idea before thinking about any other quantity. This helps you recognise Temperature inside mixture, thermometer, and calorimetry questions, where the trap is to assume one body keeps its initial temperature after contact.