A reversible cyclic process for an ideal gas is shown below. Here, P , V , a n d T are pressure, volume and temperature, respectively. The thermodynamic parameters q , w , H a n d U are heat, work, enthalpy and internal energy, respectively. The correct option(s) is (are)

∆ H C A < ∆ U C A a n d q A C = ∆ U B C

q A C = ∆ U B C a n d w A B = P 2 V 2 - V 1

q B C = ∆ H A C a n d ∆ H C A > ∆ U C A

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Advanced Paper 1 - 2017>Q 15

MEDIUM

JEE Advanced

IMPORTANT

Earn 100

An ideal gas is expanded from $(p_{1}, V_{1}, T_{1}) to (p_{2}, V_{2}, T_{2})$ under different conditions. The correct statement(s) among the following is(are)

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Important Questions on Thermodynamics

HARD

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Advanced Paper 1 - 2016>Q 16

One mole of an ideal gas at

300 K

in thermal contact with its surroundings expands isothermally from

1.0 L

to

2.0 L

against a constant pressure of

3.0 atm

. In this process, the change in entropy of the surroundings

(∆ S_{s u r r})

in

J K^{- 1}

is:

(1 L atm = 101.3 J)

MEDIUM

JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Advanced Paper 1 - 2014>Q 18

An ideal gas in a thermally insulated vessel at internal pressure =

P_{1}

, volume =

V_{1}

and absolute temperature =

T_{1}

expands irreversibly against zero external pressure, as shown in the diagram. The final internal pressure, volume and absolute temperature of the gas are

P_{2}

,

V_{2}

and

T_{2}

, respectively. For this expansion,

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JEE Advanced

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Thermodynamics>JEE Advanced Paper 1 - 2013>Q 19

The standard enthalpies of formation of ${CO}_{2} (g)$ $, H_{2} O (l)$ and glucose (s) at $2 5^{o} C$ are $- 400 kJ / mol$ , $- 300 kJ / mol$ and $- 1300 kJ / mol$ , respectively. The standard enthalpy combustion per gram of glucose at $2 5^{o} C$ is