QUESTION 1 1 points Save Answer Segments B C and D E are not associated with tem

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QUESTION 1 1 points Save Answer Segments B C and D E are not associated with temperature increases because the heat energy is used up to liquid and solid and Hent added (T O Break covalent bonds O Undergo a phase change o All of the above O Increase the density of a sample QUESTION 2 1 points Save Answer Heat of sublimation can be approximated by adding together and 01 heat of fusion, heat of condensation O2.heat of fusion, heat of vaporization heat of deposition, heat of vaporization O 4 heat of freezing (solidification heat of vaporization O5 heat of freezing (solidification, heat of condensation QUESTION 3 1 points Save Answer Match the following phase changes with the correct type of energetic process (endothermic or exothermic). Freezing Vaporization B. Endothermic I Condensation

Explanation / Answer

1)
in B-C : solid changes to liquid
in D-E: liquid changes to gas
so energy is used in undergoing phase change
Answer: undergo a phase change

2)
heat of sublimation is heat required to chnage solid to gas which is same as heat of fusion and heat of vapourisation combined
Answer: 2

3)
freezing is exothermic
vapourization is endothermic
sublimation is endothermic
condensation is exothermic

I am allowed to answer only 1 question at a time

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