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First Law Questions

Practice 4 First Law questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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4
Total Questions
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2
Easy
๐ŸŸก
2
Medium
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0
Hard
Practice by Exam:Physics(3)Chemistry(1)

About First Law โ€” practice questions, PYQs & concepts

First Law is a frequently-tested topic on Physics, Chemistry. ExamTest.live currently lists 4 First Law questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

First Law weight in competitive exams

Across our First Law question bank, the largest sources are Physics (3) and Chemistry (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 2 easy First Law questions are available โ€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right โ€” the explanation often surfaces a faster approach you can reuse.

All First Law Questions(1โ€“4 of 4)

Filter:
Q1mediummcqPhysicsAIEEE 20072026
0% accuracy
When a system is taken from state to state along the path , it is found that and . Along the path , . along the path is:
image
Q2mediummcqChemistryNEET 20172026
A gas is allowed to expand in a well insulated container against a constant external pressure of from an initial volume of to a final volume of . The change in internal energy of the gas in joules will be:
Q3easymcqPhysicsPhysics
The internal energy change in a system that has absorbed of heat and done of work is:
Q4easymcqPhysicsPhysics
If and represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?

Frequently Asked Questions

How many First Law questions are on ExamTest.live?โ–ผ
We have 4 First Law questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are First Law MCQs free?โ–ผ
Yes. All First Law questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include First Law questions?โ–ผ
First Law questions are commonly asked in Physics, Chemistry. You can filter by exam using the links above.
How do I practice First Law questions effectively?โ–ผ
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.