Explain the correct statement from the multiple choices

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The normal sublimation point of solid acetylene is -84 C. Figure out the answers to the questions below and then pick the correct statement from the multiple choices(i) Is the sublimation of solid acetylene an endothermic or an exothermic process? (i) Is the sublimation of solid acetylene an endothermic or an exothermic process? (ii) In what temperature range is the sublimation of solid acetylene a spontaneous process? (iii) In what temperature range is this process a nonspontaneous process? (iv) In what temperature range are the two phases involved in the sublimation of solid acetylene in equilibrium? a) In (iv) the two phases involved in the sublimation of solid acetylene are in equilibrium when the temperature equals -84 oC. b) In (ii) the sublimation of solid acetylene is a spontaneous process at temperatures below -84 oC. c) In (i) the sublimation of solid acetylene is an exothermic process. d) In (iv) the two phases involved in the sublimation of solid acetylene are in equilibrium at temperatures below -84 oC. e) In (iii) the sublimation of solid acetylene is a nonspontaneous process at temperatures above -84 oC.

Reference no: EM13288887

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