Question

Work done in an open vessel at 300 k when 56 g iron reacts with dilute hcl is

Answer 1

We know that Molar mass of Fe = 56 and R = 2 cal^-1  K mol^-1

W = P(nRT/P)         n = 56/56 = 1

   = 1 * 2 * 300

   = 600 calorie.

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