Answer:
Fluids (air/water) either as water vapour or oxygen and carbon dioxide.
Explanation:
Heat transfer occurs through conduction, convection or radiation.
Many aties, this involves fluids whose molecules have been activated by heated by heat, moving from hotter to cooler regions, allowing for heating or cooling of the rooms.
Building materials have varying conductivity.
Do not conduct electricity as solids. how can you use salt to conduct electricity
For the reaction c2h6 (g) → c2h4 (g) + h2 (g) δh° is +137 kj/mol and δs° is +120 j/k ∙ mol. This reaction is <span>spontaneous only at high temperature.
here the values of </span>δh° is +137 kj/mol and δs° is +120 kj/mol. so, both the value are wit the sign "+". when both values are positive than the reaction is not spontaneous at low temperature, the reaction is spontaneous only at high temperature.
Hydrogen mass is 1, the atom with mass number 7 is Lithium
Answer:
Explanation:
First we convert <u>the given masses of each element into moles</u>, using <em>their respective molar masses</em>:
- Fe ⇒ 11.26 g ÷ 55.845 g/mol = 0.202 mol Fe
- S ⇒ 9.70 g ÷ 32.065 g/mol = 0.302 mol S
Now we <em>divide them</em> in order to <u>calculate the molar ratio of S to Fe</u>:
Meaning that for each 1 Fe mol, there's 1.5 S moles. We can write that as Fe₁S₁.₅
Finally we <u>double those subscripts</u> so that <em>they become the lowest possible integers</em>: Fe₂S₃.
