Question

How to find delta s system if if delta s total is-40 kj/mol.k nd delta hsystem is 2000kj / mol and temperature is 400k​

Answer 1

Explanation:

6.22 Calculate the entropy change in surroundings when 1.00 mol of H_2 O (l) ... what are the signs of \ Delta H \: \: and \: \: \Delta S ... For the reaction at 298 K, 2 A plus B gives C delta H equals 400 ...

Answer 2

Given - ∆S total - -40kJ/mol K

∆H system - 2000 Kj/mol

temperature - 400K

Find - ∆S system

Answer -

Entropy of a system is defined as the randomness of constitutive molecules.

To find the entropy of a system, following formula will be used -

∆S total = ∆S system + ∆S surroundings

∆S surroundings in turn can be calculated with the help of formula mentioned-

∆S surroundings = -∆H/T

Keeping the values in formula-

∆S surroundings = -2000/400

∆S surroundings = -5 kJ/mol K

Now, ∆S system = ∆S total - ∆S surroundings

∆S system = -40 -(-5)

∆S system = -35 kj/mol K