Gas Laws and Ideal Gas Equation MCQs

Prepare for Gas Laws and Ideal Gas Equation MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

196 Solved Questions • 147 Mins Practice • Updated for 2026 Competitive Exams
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Gas Laws and Ideal Gas Equation constitutes an essential examination topic within Physics, evaluating theoretical principles, historical context, and practical problem-solving applications. On MCQsMind, candidates practice verified past-paper solutions, conceptual breakdowns, and syllabus-aligned questions tailored for CSS, PMS, and competitive screening examinations.

Welcome to the verified preparation module for Heat & Thermodynamics on McqsMind. This comprehensive set offers solved multiple-choice questions with answers, detailed explanations, and authentic past-paper style questions aligned with the latest syllabus of Heat & Thermodynamics (Physics).

100% Verified Answer Keys CSS, PMS, FPSC, PPSC, NTS Ready 2026/2027 Syllabus Guidelines

Solved Questions

Practice with answers, explanations, and exam-focused revision notes.

196 MCQs Page 18

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171
A water hose with an internal cross-sectional area of 2.5 × 10^-4 m^2 at the outlet discharges water at the mass flow rate of 0.5 kg s^-1. The water speed at the outlet is
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172
A certain mass of gas occupies a volume of 2 L at S.T.P. Keeping the pressure constant, at what temperature would the gas occupy a volume of 4 L?
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173
Two vessels A and B having equal volume contain equal masses of hydrogen in A and helium in B at 300 K. Then mark the correct statement.
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174
With usual notations, the mathematical form of the Torricelli's theorem is
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175
148. The relationship and the density of a gas expressed by Boyle's law P = KD holds true
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176
Argon and neon are monoatomic gases with relative atomic masses of 40 and 20 respectively. The ratio number of atoms of argon in one mole is number of atoms of neon in one mole
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177
Four molecules of a gas are having speeds of 1, 4, 8 and 16 m s⁻¹. The root mean square velocity of the gas molecules is:
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178
Calculate the work done if temperature is changed from 0°C to 200°C at 1 atmosphere (R = 2 cal K^-1)
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179
Mean free path of a gas molecule is inversely proportional to its
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180
Pressure may be defined as change in ____ per second per unit area.
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Pedagogical Syllabus Blueprint

Gas Laws and Ideal Gas Equation MCQs: Preparation Strategy & Exam Blueprint

Examination Weightage & Commission Distribution

In Pakistan's premier competitive examinations—including the Federal Public Service Commission (FPSC General Recruitment & CSS MPT), Punjab Public Service Commission (PPSC Lecturer, Tehsildar & PMS Screening), KPPSC, SPSC, and BPSC—questions derived from Gas Laws and Ideal Gas Equation MCQs consistently constitute a decisive 10% to 25% weightage of the Heat & Thermodynamics paper. Testing agencies frequently evaluate both foundational factual recall and deeper analytical comprehension, requiring aspirants to master key dates, statutory articles, constitutional clauses, and thematic definitions.

High-Yield Conceptual Pillars & Distractor Analysis

Historical trend analysis across past five-year examination cycles demonstrates that examiner traps frequently involve closely matched numerical alternatives, chronologically contiguous treaties, and semantic subtleties in statutory phraseology. When preparing Gas Laws and Ideal Gas Equation MCQs, candidates must deliberately review the underlying rationale provided for every question rather than merely memorizing raw answer options. Understanding why incorrect distractors fail is the most reliable predictor of achieving top percentiles in computerized and optical mark recognition (OMR) screening tests.

Negative Marking Mitigation & Time Management Protocol

For examinations enforcing negative marking penalties (such as PPSC's 0.25-mark deduction per erroneous response or NTS gatekeeper quotas), an aggressive elimination technique must be deployed. Candidates should systematically rule out improbable options first to elevate probability thresholds from 25% to 50% or 100%. Allocating an average of 45 to 60 seconds per item during mock trials builds the psychological stamina and cognitive precision required to complete 100-question papers within official 90-minute time limits.

Recommended Reference Sources & Statutory Reading

To achieve definitive conceptual mastery in Physics, candidates are advised to cross-reference our solved explanations with primary gazettes, statutory texts, and canonical academic textbooks. Verifying controversial questions against authentic official repositories guarantees that prospective civil servants and professional candidates present incontestable answers during both optical paper evaluations and viva voce departmental interviews.