Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C) Substance ΔH°f (kJ/mol) ΔG°f (kJ/mol) S (J/K-mol) Oxygen O2 (g) 0 0 205.0 H2O (l) -285.83 -237.13 69.91 Sulfur S (s, rhombic) 0 0 31.88 SO2(g) -269.9 -300.4 248.5 SO3(g) -395.2 -370.4 256.2 The value of ΔG° at 25 °C for the oxidation of solid elemental sulfur to gaseous sulfur trioxide, 2S (s, rhombic) + 3O2 (g) → 2SO3 (g)

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.