EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2019>Q 7

EASY

MHT-CET

IMPORTANT

Earn 100

Two moles on an ideal gas is expanded isothermally and reversibly at 300 K form 1 L to 10 L. The enthalpy change in KJ is

50% studentsanswered this correctly

Important Questions on Chemical Thermodynamics and Energetics

EASY

MHT-CET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2019>Q 8

If

C (s) + O_{2} (g) \to C O_{2} (g), Δ H = - X,

C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g), Δ H = - Y,

Calculate

Δ_{f} H

for

C O_{(g)}

formation

EASY

MHT-CET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Chemical Thermodynamics and Energetics>MHT-CET 2017>Q 9

Identify the INVALID equation.

HARD

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 10

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

?

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 ?