Question

one mole of aluminium carbide reacts with water in a closed vessel at 27 degrees centigrade against atmospheric pressure work done is​

Answer 1

Hello Dear,

◆ Answer -

W = -7.482 kJ

◆ Explanation -

Aluminum carbide reacts with water to form aluminium hydroxide and methane gas.

Reaction can be represented as follows -

Al4C3(s) + 12H2O(l) → 4Al(OH)3(aq) + 3CH4(g)

Ideal gas equation takes only gaseous products into consideration, thus ∆n = 3 .

Work done during the process -

W = - ∆n × R × T

W = - 3 × 8.314 × 300

W = -7482 J

W = -7.482 kJ

Work done during the reaction is -7.482 kJ.

Hope this helps you. Thanks for asking..