Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Thermodynamics question

2022 · 29 Jun · Shift 2 · Q15
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Thermodynamics
  5. /2022 · 29 Jun · Shift 2 · Q15

Thermodynamics question

2022 · 29 Jun · Shift 2 · Q15

JEE MainChemistryThermodynamicsNumerical+4 / −1
2.2 g of nitrous oxide (N2ON_2ON2​O) gas is cooled at a constant pressure of 1 atm from 310 K to 270 K causing the compression of the gas from 217.1 mL to 167.75 mL. The change in internal energy of the process, Δ\DeltaΔ U is '−-− x' J. The value of 'x' is ‾\underline{\hspace{2cm}}​. [nearest integer] (Given : atomic mass of N = 14 g mol −-− 1 and of O = 16 g mol −-− 1. Molar heat capacity of N2ON_2ON2​O is 100 J K −-− 1 mol −-− 1)
Numerical answer
PreviousNext

More from Thermodynamics

  • 1.0 mol of monoatomic ideal gas is expanded from state 1 to state 2 as shown in the figure. The magnitude of the work done for the expansion of gas from state 1 to state 2 at 300 K is ​ J. (Nearest integer) (Given… Includes diagram2022 · Numerical
  • Δ G ∘ vs T plot for the formation of MgO, involving reaction 2Mg + O2​ → 2MgO, will look like :2022 · MCQ
  • For the reaction, 2NO2​(g) ⇌ N2​O4​(g), when Δ S = − 176.0 JK − 1 and Δ H = − 57.8 kJ mol − 1, the magnitude of Δ G at 298 K for the reaction is ​ kJ mol − 1.…2021 · Numerical
  • At 25 ∘ C, 50 g of iron reacts with HCl to form FeCl2​. The evolved hydrogen gas expands against a constant pressure of 1 bar. The work done by the gas during this expansion is ​ J. (Round off to the…2021 · Numerical
  • The standard enthalpies of formation of Al2​O3​ and CaO are − 1675 kJ mol-1 and − 635 kJ mol − 1 respectively. For the reaction 3CaO + 2Al → 3Ca + Al2​O3​ the standard reaction enthalpy Δ rH0 = ​…2021 · Numerical
  • During which of the following processes, does entropy decrease? (A) Freezing of water to ice at 0 ∘ C (B) Freezing of water to ice at − 10 ∘ C (C) N2​(g) + 3H2​(g) → 2NH3​(g) (D) Adsorption of CO(g) on lead…2021 · MCQ
  • For the reaction C2​H6​ → C2​H4​ + H2​ the reaction enthalpy Δ rH = ​ kJ mol − 1. (Round off to the Nearest Integer). [ Given : Bond enthalpies in kJ mol − 1 : C-C : 347, C = C : 611; C-H :…2021 · Numerical
  • For a given chemical reaction A → B at 300 K the free energy change is − 49.4 kJ mol − 1 and the enthalpy of reaction is 51.4 kJ mol − 1. The entropy change of the reaction is ​ JK − 1 mol − 1.2021 · Numerical