Which of the following are true about a block of ice at -10°c as you continue to apply heat.

The ice cube begins to melt into liquid and eventually reaches ice water equilibrium state if continuous heat is applied

Explanation:

During heating, a dynamic equilibrium is formed where there is water melting and freezing at the same time. The phase transition from solid to liquid takes place where the temperature of the ice cube increases from -10 degrees celsius to 0 degrees celsius and will not get hotter till the whole ice cube is melted down into liquid state.

If there is any pressure change within the system such that it is decreased below 0.006 atm and temperature increase above 0 degrees celsius the ice will transition from solid to vapour phase directly ignoring the liquid phase.

a is the answer to this question

explanation:

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