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

Thermodynamics question

2019 · 9 Apr · Shift 2 · Q16
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Thermodynamics
  5. /2019 · 9 Apr · Shift 2 · Q16

Thermodynamics question

2019 · 9 Apr · Shift 2 · Q16

JEE MainChemistryThermodynamicsMCQ+4 / −1
During compression of a spring the work done is 10kJ and 2kJ escaped to the surroundings as heat. The change in internal energy, Δ\DeltaΔ U(inkJ) is :
  1. A
    - 12
  2. B
    8
  3. C
    - 8
  4. D
    12
PreviousNext

More from Thermodynamics

  • Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures T1 and T2 (T1 < T2). The correct graphical depiction of the dependence of work done (w) on the final volume (V) is :2019 · MCQ
  • The entropy change associated with the conversion of 1 kg of ice at 273 K to water vapours at 383 K is : (Specific heat of water liquid and water vapour are 4.2 kJ K − 1 kg − 1 and 2.0 kJ K − 1 kg − 1; heat of liquid fusion and…2019 · MCQ
  • A process will be spontaneous at all temperatures if :2019 · MCQ
  • The difference between Δ H and Δ U (Δ H – Δ U), when the combustion of one mole of heptane(l) is carried out at a temperature T, is equal to :2019 · MCQ
  • A process has Δ H = 200 J mol–1 and Δ S = 40 JK–1 mol–1. Out of the values given below, choose the minimum temperature above which the process will be spontaneous :2019 · MCQ
  • An ideal gas undergoes isothermal compression from 5m3 to 1 m3 against a constant external pressure of 4 Nm–2. Heat released in this process is used to increase the temperature of 1 mole of Al. If molar heat capacity of Al is 24 J mol–1…2019 · MCQ
  • The process with negative entropy change is :2019 · MCQ
  • For the chemical reaction X ⇌ Y, the standard reaction Gibbs energy depends on temperature T (in K) as Δ rGo (in kJ mol–1) = 120 −83​ T. The major component of the reaction mixture at T is :2019 · MCQ