EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2020 (12-Oct Shift-1)>Q 10

HARD

MHT-CET

IMPORTANT

Earn 100

Enthalpy of fusion and enthalpy of vaporization for water respectively are $6.01 kJ {mol}^{- 1}$ and $45.07 kJ {mol}^{- 1}$ at $0 ° C$ what is enthalpy of sublimation at $0 ° C$ ?

66.1% studentsanswered this correctly

Important Questions on Chemical Thermodynamics and Energetics

MEDIUM

MHT-CET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2020 (12-Oct Shift-1)>Q 11

For the following reaction

${Fe}_{2} O_{3 (s)} + 3 {CO}_{(g)} ⟶ 2 {Fe}_{(s)} + 3 {CO}_{2 (g)} ΔH ° = - 29.8 kJ$ and $ΔS ° = 15 {JK}^{- 1}$ . What is the value of ${ΔS}_{(total)}$ at $298 K$ ?

MEDIUM

MHT-CET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2020 (13-Oct Shift 1)>Q 12

For a reaction

ΔH = - 30 kJ

and

ΔS = - 45 J K^{- 1},

at what temperature reaction changes from spontaneous to non-spontaneous ?