EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 9th January 2019 Shift 1>Q 11

HARD

JEE Main

IMPORTANT

Earn 100

Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures $T_{1}$ and $T_{2} (T_{1} < T_{2})$ . The correct graphical depiction of the dependence of work done $(w)$ vs the final volume $(V)$ is:

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Important Questions on Thermodynamics

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 9th April 2019 Shift 1>Q 13

Among the following, the set of parameters that represents path functions, is:
i)

q + w

ii)

q

iii)

w

iv)

H - T S

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 9th April 2017>Q 14

An ideal gas undergoes isothermal expansion at constant pressure. During the process:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 9th April 2014>Q 18

The standard enthalpy of formation of

{NH}_{3}

is

- 46.0 kJ / mol

. If bond enthalpy of

H_{2}

is

- 436 kJ / mol

and that of

N_{2}

is

- 712 kJ / mol

, the average bond enthalpy of

N - H

bond in

{NH}_{3}

is :

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 8th January 2020 Shift 1>Q 20

The magnitude of work done by a gas that undergoes a reversible expansion along the path $A B C$ shown in the figure is _________.
Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 8th April 2019 Shift 1>Q 22

For silver,

C_{p} (J K^{- 1} m o l^{- 1}) = 23 + 0.01 T .

If the temperature

(T)

of

3

moles of silver is raised from

300 K t o 1000 K a t 1 a t m

pressure, the value of

Δ H

will be close to:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 8th April 2019 Shift 1>Q 23

Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non- expansion work is zero)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Main - 7th January 2020 Shift 2>Q 27

The standard heat of formation $(∆_{f} H_{298}^{0})$ of ethane is $- \frac{x}{10} kJ / mol$ , if the heat of combustion of ethane, hydrogen and graphite are $- 1560, - 393.5$ and $- 286 k J / m o l$ , respectively. The value of $x$ to the nearest integer is_____