Question

During the following reaction work is NH3(g) + HCl(g) -> NHCl(s)
A] Zero
B)maximum
C)Done on the system
D) By the system​

Answer 1

Answer:

D) Done by the system

NH3 (g) + HCl (g) --- NHCl (s) + 3/2 H2 (g)

Difference in moles of gas = 0.5 more in reactants

As the internal energy will decrease This is because of decrease in entropy, as product have less moles of gas than the reactant.

hope this will help you

Answer 2

Answer:

Given, △H=177 kJ/mol, △S=285 JK −1 mol −1

, T=298 K

Using the relation, △G=△H−T△S

△G=(177×10

3

 J/mol)−(298 K)(285 JK −1 mol −1 )

△G=92070 J/mole

△G=92.07 kJ/mole

△G>0

Since △G is positive, Hence reaction is non spontaneous.

Explanation:

So the opsiton [D] is the corret If u think its wrong then report my answer

Bye good night