A process has and . Out of the values given below, choose the minimum temperature above which the process will be spontaneous:

(1) 20 K (2) 5 K (3) 12 K (4) 4 K

Question

A process has  and . Out of the values given below, choose the minimum temperature above which the process will be spontaneous:

(1) 20 K  (2) 5 K  (3) 12 K  (4) 4 K

Canvas Classes · Accepted Answer

Strategy:
 Spontaneity threshold occurs at . In some multiple-choice contexts, you must choose the smallest provided value that satisfies the condition .

Step 1: Find the threshold 
.
For spontaneity, .

Step 2: Select from options
Options: (1) 20 K, (2) 5 K, (3) 12 K, (4) 4 K.
At 5 K it is at equilibrium. Only 20 K and 12 K are above 5 K. The minimum temperature provided in the options that is above the threshold is usually sought. (Given key: Option 1).

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