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Previous year question hub

Thermodynamic Relations - Engineering Sciences Previous Year Questions

Practice Thermodynamic Relations - Engineering Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

14Papers
14Years
34Questions
1Topics

Thermodynamic Relations question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Thermodynamic Relations. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 20 58.8%
Easy 13 38.2%
Hard 1 2.9%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 31 91.2%
Numerical Answer Type (NAT) 3 8.8%

Subject weightage

Top subjects by unique question coverage.

Engineering Sciences
34 Qs

Most asked topics

Top topics across the included previous year papers.

Thermodynamic Relations
34 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Thermodynamic Potentials and Property Relations
34 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Engineering Sciences (XE) 2026
4 Qs
Engineering Sciences (XE) 2025
2 Qs
Engineering Sciences (XE) 2024
5 Qs
Engineering Sciences (XE) 2022
2 Qs
Engineering Sciences (XE) 2021
4 Qs
Engineering Sciences (XE) 2019
3 Qs
Engineering Sciences (XE) 2018
1 Qs
Engineering Sciences (XE) 2017
2 Qs
Engineering Sciences (XE) 2016
1 Qs
Engineering Sciences (XE) 2015
1 Qs
Engineering Sciences (XE) 2014
1 Qs
Engineering Sciences (XE) 2013
3 Qs
Engineering Sciences (XE) 2012
3 Qs
Engineering Sciences (XE) 2008
2 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Thermodynamic Potentials and Property Relations

Explore previous-paper coverage, trends and focused practice for Thermodynamic Potentials and Property Relations.

34 questions14 papers14 years

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Engineering Sciences (XE) 202620264View paper
Engineering Sciences (XE) 202520252View paper
Engineering Sciences (XE) 202420245View paper
Engineering Sciences (XE) 202220222View paper
Engineering Sciences (XE) 202120214View paper
Engineering Sciences (XE) 201920193View paper
Engineering Sciences (XE) 201820181View paper
Engineering Sciences (XE) 201720172View paper
Engineering Sciences (XE) 201620161View paper
Engineering Sciences (XE) 201520151View paper
Engineering Sciences (XE) 201420141View paper
Engineering Sciences (XE) 201320133View paper
Engineering Sciences (XE) 201220123View paper
Engineering Sciences (XE) 200820082View paper

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2008 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2008
Which one of the following relations is wrong?
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2
2012 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2012
The slope of a Mollier diagram at constant pressure indicates
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3
2013 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2013

Which of the following processes, shown in the figure below, represents the throttling of an ideal gas?

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4
2014 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2014
The equation of state for a certain gas is given by \(v = RT / P - C_1 / T^2 + C_2\), where \(C_1\) is 50,000 (K3.m3)/kg and \(C_2\) is 0.8 m3/kg. The relation \(\left(\frac{\partial h}{\partial P}\right)_T = v - T \left(\frac{\partial v}{\partial T}\right)_p\) is known for the gas. The inversion temperature, given by the condition, \(\left(\frac{\partial h}{\partial P}\right)_T = 0\) is __________ K.
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5
2015 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2015
For a real gas undergoing volume expansion through a porous plug with \(\alpha = \frac{1}{v}\left(\frac{\partial v}{\partial T}\right)_p\), the Joule-Thomson cooling effect is observed if
(A) \(0 < \alpha T < 1\)
(B) \(\alpha T = 1\)
(C) \(\alpha T > 1\)
(D) \(\alpha T = 0\)
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6
2016 · Engineering Sciences · Thermodynamic Relations · Thermodynamic Potentials and Property Relations
Engineering Sciences (XE) 2016
The Maxwell relation that results from the expression for the Helmholtz free energy \(A = U - TS\), is:
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