GATE Thermodynamics and Statistical Mechanics: Laws of thermodynamics – Previous Year Questions
12 GATE previous year questions on Laws of thermodynamics (Thermodynamics and Statistical Mechanics, Physics) with answers and explanations, from every paper.
- GATE 2022 PH Q17 – Which relation between internal energy U and Helmholtz free energy F is true?
- GATE 2022 PH Q37 – Water at 300 K can be brought to 320 K using one of the following processes. Process 1: Water is brought in equilibrium with a reservoir at 320 K…
- GATE 2022 PH Q47 – A paramagnet obeys dG=-S\,dT-M\,dH. For an infinitesimal adiabatic field change, which statements hold?
- GATE 2022 PH Q63 – One mole of nitrogen is (I) cooled at 1 atm from 300 to 77 K, and (II) liquefied at 77 K. Find entropy-change ratio I/II to one decimal, using Cp=7…
- GATE 2023 PH Q11 – Which one of the following entropy (S) - temperature (T) diagrams CORRECTLY represents the Carnot cycle abcda shown in the P-V diagram?
- GATE 2023 PH Q28 – Which of the following is(are) the CORRECT option(s) for the Joule-Thomson effect?
- GATE 2023 PH Q65 – Two identical bodies kept at temperatures 800 K and 200 K act as the hot and the cold reservoirs of an ideal heat engine, respectively. Assume that…
- GATE 2026 PH Q17 – Consider the Otto cycle for an ideal gas engine consisting of two quasistatic adiabatic and two quasistatic isochoric processes. The correct…
- GATE 2026 PH Q33 – The specific heat C p(T) of one mole of a material as a function of temperature T is given as C p(T)=AT+BT3, where A=0.695\ mJ\,mol-1K-2 and B=0.045\…
- GATE 2025 PH Q15 – The Joule-Thomson expansion of a gas is
- GATE 2025 PH Q30 – One mole of an ideal monatomic gas at absolute temperature T undergoes free expansion to double its original volume, so that the entropy change is S…
- GATE 2024 PH Q14 – If a thermodynamical system is adiabatically isolated and experiences a change in volume under an externally applied constant pressure, then the…