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 - 2014>Q 18

MEDIUM

JEE Advanced

IMPORTANT

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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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Important Questions on Thermodynamics

HARD

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

( ${ΔH}_{f}^{0} = - 1300 kJ {mol}^{- 1}$ for Glucose)

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