Worked examples: TCE Chemistry Information Sheet

Selected worked examples

1. Gas calculations · absolute temperature

   Formula or reference: T(K) = T(°C) + 273.15 for use in pV = nRT.

   Units and conditions: Match pressure and volume to R.

   Worked example: At 27.0 °C the temperature is 300.15 K. At 100 kPa, 1.00 mol occupies about 25.0 L.

2. Electrochemistry · ranking oxidising agents

   Formula or reference: A higher standard reduction potential indicates a greater tendency to be reduced under standard conditions.

   Units and conditions: Compare both entries as reductions, in volts.

   Worked example: Between entries at +0.34 V and −0.76 V, the oxidised species in the +0.34 V entry is the stronger oxidant.