Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Thermodynamics question

2024 · Q129
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Chemistry
  4. /Thermodynamics
  5. /2024 · Q129

Thermodynamics question

2024 · Q129

NEETChemistryThermodynamicsMCQ+4 / −1

For an endothermic reaction:

(A) qp\mathrm{q}_{\mathrm{p}}qp​ is negative.

(B) ΔrH\Delta_{\mathrm{r}} \mathrm{H}Δr​H is positive.

(C) ΔrH\Delta_r \mathrm{H}Δr​H is negative.

(D) qp\mathrm{q}_{\mathrm{p}}qp​ is positive.

Choose the correct answer from the options given below:

  1. A
    B and D
  2. B
    C and D
  3. C
    A and B
  4. D
    A and C
View written solutionFree

Correct answer: A

For endothermic reactions,

$$ \begin{aligned} \& \Delta H_r=\text { positive (Heat is absorbed) } \\ \& \Delta H=E_{a(f)}-E_{a(b)} \end{aligned} $$

NEET 2024 (Re-Examination) Chemistry - Thermodynamics Question 4 English Explanation
PreviousNext

More from Thermodynamics

  • For the following reaction at 300 K A2​( g)+3 B2​( g)→2AB3​( g) the enthalpy change is +15 kJ, then the internal energy change is :2024 · MCQ
  • Consider the following reaction :- 2H2​( g)+O2​( g)→2H2​O(g)Δr​H∘=−483.64 kJ.  What is the enthalpy…2023 · MCQ
  • The equilibrium concentrations of the species in the reaction A+B⇌C+D are 2,3,10 and 6 mol L−1, respectively at 300 K.ΔG0…2023 · MCQ
  • Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?2023 · MCQ
  • One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. ΔU for this process is : (Use R = 8.314 J k−1 mol−1)2022 · MCQ
  • A vessel contains 3.2 g of dioxygen gas at STP (273.15 K and 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes one third of the original pressure. The volume of new vessel in L is…2022 · MCQ
  • Which of the following p-V curve represents maximum work done?2022 · MCQ
  • For irreversible expansion of an ideal gas under isothermal condition, the correct option is :2021 · MCQ