Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 15

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Earn 100

Isentropic process is:

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Important Questions on Thermodynamics

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 17

An isolated system comprises the liquid in equilibrium with vapours. At this stage the molar entropy of the vapour is:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 18

For the process

H_{2} O (l) \to H_{2} O (g)

at T = 100 °C and 1 atmosphere pressure, the correct choice is

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 19

ΔH = 30

kJ {mol}^{- 1}

,

ΔS = 75

J / K / mol

. Find the boiling temperature at

1

atm

.

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 20

A certain quantity of water is kept in freezer maintained at the freezing point of water. Which of the following observation would take place:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 21

Given the following reactions:

$I : N_{2} (g) + 2 O_{2} (g) ⟶ 2 {NO}_{2} (g)$ , ${ΔH}_{I} = 16.18$ $kcal$

$II : N_{2} (g) + 2 O_{2} (g) ⟶ N_{2} O_{4} (g)$ , ${ΔH}_{II} = 2.31$ $kcal$

Based on the above facts:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 22

The value of $\log_{10} K$ for a reaction $A ⇌ B$ is

Given:

\begin{array}{l} ∆_{r} H_{298 K}^{o} = - 54.07 kJ {mol}^{- 1}, ∆_{r} S_{298 K}^{o} = 10 J K^{- 1} {mol}^{- 1}, R = 8.314 J K^{- 1} {mol}^{- 1}, \\ 2.303 \times 8.314 \times 298 = 5705 \end{array}

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 23

For a reaction

A (g) ⇌ B (g)

at equilibrium, the partial pressure of

B

is found to be one-fourth of the partial pressure of

A

. The value of

ΔG °

of the reaction

A \to B

is

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 2>Q 24

Given that, the molar heat capacity of ice is more than the molar heat capacity of water vapour. Let '

x

' and '

y

' be the magnitudes of the enthalpies of sublimation of ice at

T_{1} K

and

T_{2} K

, such that

T_{1} < T_{2}

. Choose the correct options: