Answer:
59.89 KJ
Explanation:
Data Given:
mass of H₂O (m) = 26.5 g
heat released (Q) = ?
Solution:
This question is related to the latent heat of condensation.
Latent heat of condensation is the amount of heat released when water vapors condenses to liquid.
Formula used
Q = m x Lc . . . . . (1)
where
Lc = specific latent heat of condensation
Latent heat of vaporization of water is exactly equal to heat of condensation with -ve charge
So, Latent heat of vaporization of water has a constant value
Latent heat of vaporization of water = 2260 J/g
So
Latent heat of condensation of water will be = - 2260 J/g
Put values in eq. 1
Q = (26.5 g) x (- 2260 J/g)
Q = - 59890 J
convert J to kJ
1000 J = 1 KJ
59890 J = 59890 / 1000 = 59.89 KJ
So, 59.89 K of heat will be released. negative sign indicate release of energy for condensation
isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical properties.
Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.
<h3>What is a weak base ionization constant?</h3>
The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.
The reaction for HCO₃ is given as:
HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O
The value of Ka for the given reaction will be:
Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]
Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.
Learn more about the weak ionization constant here:
brainly.com/question/27200344
#SPJ1
middle or surface of the moon