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

Thermodynamics question

2013 · Shift 0 · Q1
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Thermodynamics
  5. /2013 · Shift 0 · Q1

Thermodynamics question

2013 · Shift 0 · Q1

JEE MainChemistryThermodynamicsMCQ+4 / −1
A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 37.0oC. As it does so, it absorbs 208J of heat. The values of q and w for the process will be : (R = 8.314 J/mol K) ( l n 7.5 = 2.01)
  1. A
    q = – 208 J, w = – 208 J
  2. B
    q = – 208 J, w = + 208 J
  3. C
    q = + 208 J, w = + 208 J
  4. D
    q = + 208 J, w = – 208 J
PreviousNext

More from Thermodynamics

  • The incorrect expression among the following is :2012 · MCQ
  • The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 dm3 to a volume of 100 dm3 at 27oC is :2011 · MCQ
  • For a particular reversible reaction at temperature T, ∆H and ∆S were found to be both +ve. If Te is the temperature at equilibrium, the reaction would be spontaneous when :2010 · MCQ
  • The standard enthalpy of formation of NH3​ is –46.0 kJ mol–1. If the enthalpy of formation of H2​ from its atoms is –436 kJ mol–1 and that of N2​ is –712 kJ mol–1, the average bond enthalpy of N–H bond in NH3​ is :2010 · MCQ
  • On the basis of the following thermochemical data : (Δf​GoH(aq)+​= 0) H2​O(l) → H+(aq) + OH−(aq); ΔH= 57.32 kJ H2​(g) +21​O2​(g)→ H2​O(l); ΔH = -286.20 kJ The value of enthalpy of…2009 · MCQ
  • Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below: 21​Cl2​(g) 21​Δdiss​HΘ​ Cl(g)Δeg​HΘ​Cl−(g)ΔHyd​HΘ​Cl−(aq)…2008 · MCQ
  • Standard entropy of X2​, Y2​ and XY3​ are 60, 40 and 50 JK−1 mol−1 , respectively. For the reaction, 21​X2​+23​Y2​→ XY3​, ΔH = -30 kJ, to be at equilibrium, the temperature will be :2008 · MCQ
  • Assuming that water vapour is an ideal gas, the internal energy change (ΔU) when 1 mol of water is vapourised at 1 bar pressure and 100∘C(Given : molar enthalpy of vapourisation of water at 1 bar…2007 · MCQ