According to Gay -Lussac's law, the pressure of the can if it is heated to 1270°C is 4295.53 mm Hg.
It is defined as a gas law which states that the pressure which is exerted by the gas directly varies with its temperature and at a constant volume.The law was proposed by Joseph Gay-Lussac in the year 1808.
The pressure of the gas at constant volume reduces constantly as it is cooled till it undergoes condensation .If a graph of pressure versus temperature is plotted it is a straight line which passes through the origin .
The equation is given as, P₁/T₁=P₂/T₂
On substitution of values as ,P₁=760 mm Hg,T₁=273 K,T₂=1543 K
P₂=1543×760/273=4295.53 mm Hg.
Thus, the pressure of gas is 4295.53 mm Hg if it is heated up to 1270°C.
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Answer:
The strong acid is that which undergoes the most amount of ionization into hydrogen ions in aqueous solution
Explanation:
Here we note that the strength of an acid is determined by the degree of ionization into hydrogen ions [H⁺] and hydoxonium ions an aqueous solution.
Therefore, the solution that has the highest proportion of hydrogen ions per each acid molecule is considered the stronger acid.
Strong acids ionize more completely in an aqueous solution and thus produce a higher concentration of hydronium ions. Conversely, weak acids only partially ionize, producing fewer hydronium ions.
An aqueous solution of a strong acid will show a higher concentration of hydronium ions (H3O+) as a result of more complete ionization. This is because, in a strong acid, nearly every molecule dissociates, yielding these ions.
Conversely, an aqueous solution of a weak acid will show a lower concentration of hydronium ions due to partial ionization. The molecules of a weak acid do not completely dissociate, resulting in fewer ions.
These behaviors are depicted in the given figures, which show the relative strengths of acids, differentiated based on their acid-ionization constants (Ka) and the concentration of hydronium ions they generate.
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and reactants are equal.
B. The rate of the forward reaction equals the rate of the reverse reaction and the
concentrations of products and reactants are equal.
C. The rates of the forward and reverse reactions are zero and the concentrations of products
and reactants are constant.
D. The rate of the forward reaction equals the rate of the reverse reaction and the
concentrations of products and reactants are constant.
The best statement which describes a reaction in a state of equilibrium is letter D. The rate of the forward reaction equals the rate of the reverse reaction and the concentrations of products and reactants are constant.
>Chemical equilibrium is defined as the state in which both reactants and products are present in concentrations which have no further tendency to change with time. This state results when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not zero, but equal. Thus, there are no net changes in the concentrations of the reactant(s) and product(s).
b. -3
c. 0
d. +3
e. +7
In determining the boiling point of solutions, always take note of the number of ions that will dissociate in the solution. It does not depend on the nature of the substance. The greater the number of ions dissociated, the greater is the boiling point of the solution.