Question 8 (1 point) How many moles of Neon gas are there if 25.0 Liters of the gas are at 278K and pressure of 89.9 KPa (R= 8.314)
a) 5.60 mol
b) 0.85 mol
c) 0.97 mol
d) 6.50 mol

Talc (french chalk) is the ingredient

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Answer(28.02g/mol);