Answer:
<h2>5.59 </h2>
Explanation:
The pH of a solution can be found by using the formula
From the question we have
We have the final answer as
<h3>5.59</h3>
Hope this helps you
The reaction occurs in a similar way as magnesium does, but much less vigorous. Strong heating is required to make iron powder burn in oxygen. The reaction gives out a yellow showery sparks and produces a black solid. iron reacts with dilute hydrocloric acid to give iron chloride and hydrogen gas.
Answer:
K2 = 9.701 x 10^-10
Explanation:
K1 = 4.0 x 10^-5
K2 = ?
T1 = -10.8 °C +273 = 262.2K
T2 = -16 °C + 273 = 257K
ΔHrxn = 120. kJ/mol = 120000 J/mol
The formular relating all these parameters is given as;
ln( K2 / K1) = −ΔHrxn / R * (1 / T2 − 1 / T1)
ln (K2 / 4.0 x 10^-5) = - 120000 / 8.314 (1 / 257 - 1 / 262.2)
ln (K2 / 4.0 x 10^-5) = 1.1138
ln K2 - ln4.0 x 10^-5 = 1.1138
ln K2 = 1.1138 + ln4.0 x 10^-5
ln K2 = 1.1138 - 10.1266
ln K2 = -9.0128
K2 = 9.701 x 10^-10
Explanation:
Boiling point is defined as the temperature at which vapor pressure of liquid becomes equal to the atmospheric pressure.
When high temperature is provided to a liquid then forces of attraction between the molecules decreases and kinetic energy of its molecules increases. As a result, collision between the particles increases.
Also, it is known that kinetic energy is directly proportional to temperature. Therefore, when temperature increase kinetic energy also increases.
Hence, we can conclude that statements correctly describing water boiling in a pot are as follows.
- The water’s internal kinetic energy is increasing.
- The water’s temperature is increasing.
- Individual water molecules are escaping.