Question

Сколько нужно сдечь S чтобы поглотилось 360кДж? S+O2--->SO2-180кДж

Answer 1

Из уравнения реакции:
1 моль S/180кДж = х моль S/360 кДж
х = 2
v(S) = 2 моль
m(S) = 2*32=34 г

Answer 2

Calculating the Amount of Substance Required to Absorb Energy

To calculate the amount of substance (S) required to absorb 360 kJ of energy in the reaction S + O2 -> SO2, we can use the equation:

q = nΔH

Where: - q = heat absorbed (in this case, 360 kJ) - n = amount of substance - ΔH = enthalpy change for the reaction (-180 kJ)

We can rearrange the equation to solve for the amount of substance (n):

n = q / ΔH

Substituting the given values: n = 360 kJ / (-180 kJ) n = -2 moles

It's important to note that the negative sign indicates that the reaction releases energy rather than absorbs it. This means that 2 moles of the substance S would release 360 kJ of energy in the given reaction.