Dont know if its right but :/ <span>NiS <---> Ni+2 + S-2 </span><span>Ksp = [Ni+2] * [S-2] = (9.6E=11)^2 = 9.22E-21</span>
Hexane is alkane and hexene is alkene.
They can be distinguish by bromine test.
Hexane being a saturated hydrocarbon does not decolourizes Br2 in CCl4 and hexene being unsaturated decolourizes Br2 in CCl4.
Reaction : CH3CH2CH2CH2CH2=CH2 + Br2 in CCl4 ------> CH3CH2CH2CH2CH2(Br)CH2Br ( colourless)
Read more on Brainly.in - https://brainly.in/question/2820606#readmore
Answer:
When T > 533.5K, the reaction is spontaneous in the forward reaction.
When T < 533.5K, the reaction is nonspontaneous
Explanation:
Using the equation:
ΔG = ΔH - TΔS
<em>Where T is absolute temperature</em>
<em />
The ΔG < 0 indicates nonspontaneus reaction, ΔG > 0 indicates spontaneous reaction.
That means:
0J/mol = 67700J/mol - T*126.9J/molK
T*126.9J/molK = 67700J/mol
T = 533.5 K
That means:
<h3>When T > 533.5K, the reaction is spontaneous in the forward reaction.</h3><h3>When T < 533.5K, the reaction is nonspontaneous</h3>
<em />
Given: Volume of flask=12 L
Number of moles of an ideal gas=1.3 mol
Temperature=20°C
Gas is an ideal gas thus, it follows the ideal gas equation as follows:

Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant
and T is temperature.
First convert temperature from °C to K as follows:

Thus,

Rearrange ideal gas equation to calculate pressure,

Putting the values,

Therefore, pressure in the flask will be 2.6 atm.
T = 2T , P = 2P as given in the question
Volume = mass *density
Now apply ideal gas law
PV=nRT
V = nRT/P
substitute value of V and P
V = nR2T/2P
V =nRT/P
mass*density = nRT/P
density will not change