For this reaction to proceed, the following bond breaking should occur:
*one C-H bond
* one Cl-Cl bond
After, the following bond formations should occur:
*one C-Cl bond
*one H-Cl bond
Now, add the bond energies for the respective bond energies which can be found in the attached picture. For bond formations, energy is negative. For bond breaking, energy is positive.
ΔHrxn = (1)(413) + (1)(242) + 1(-328) + 1(-431) =
<em>-104 kJ</em>
Answer:
Non of the option applies
Explanation:
Gases may be assumed to obey the ideal gas law, which states that, for pressure P, volume V, number of moles n, and temperature T,
PV = nRT.
where R is the gas constant, and n is the number of mole of gas
If the temperature is held constant, we obtain a simplified version called Boyle's Law, and if the pressure is held constant, we obtain Charles' Law.
Boyle's law:
Boyle's law states that the volume of a given mass of gas is inversely proportional to is pressure, provided that the temperature remains constant.
Mathematically,
P ∝ I/V
∴ PV ∝ 1
From the above mathematical expression, it shows that PV is a constant and does not change with pressure or volume.
∴ non of the options applies
All of the planets orbit around the sun, due to the gravitational pull of the sun
Answer:
Iron, copper , calcium
Explanation:
Iron , copper and calcium are present in three different groups.
Iron is present in group eight.
Copper is present in group eleven.
Calcium is present in group two.
Sodium , potassium and rubidium are present in same group i.e. group one. These are alkali metals.
Fluorine, chlorine and bromine are present in group seventeen. These are halogens.
Argon, Krypton and xenon are present in same group i.e, group eighteen. All are these noble gases.
Answer:
It is double displacement reaction
