Answer: D
Explanation:
Weight by definition is mass multiplied by the acceleration of gravity. So, weight is the force of gravity
Answer:
The limiting reactant is the K
Explanation:
This is the reaction:
2 K + F₂ → 2KF
2 moles of potassium react with 1 mol of fluorine
Let's determine the moles:
6.02x10²³ molecules are contained in 1 mol
10 molecules are contained in (10 . 1) / NA = 1.66x10⁻²³ moles
For 1 mol of flourine, we need 2 moles of K
If we have 1.66x10⁻²³ moles of Fl₂, we will need the double of K
For 2 moles of K, we need 1 mol of Fl₂
If we have 1.66x10⁻²³ moles of K, we will need the half of Fl₂
Then, the limiting reactant is the K
Answer:
334 J
Explanation:
Cuando se comprime un gas, el trabajo se realiza en el gas, por lo que el trabajo realizado es positivo.
El sistema pierde calor, por lo que el calor es negativo.
De la primera ley de la termodinámica;
E = w + q
Dónde;
w = trabajo realizado
q = calor
E = 462 J - 128 J
E = 334 J
