Thermodynamics – Zeroth & First Law, Internal Energy, Work Done
Physics · Grade 11 · Week 30 · 25 questions
Thermodynamics is a foundational Grade 11 physics chapter that covers Zeroth & First Law, Internal Energy, and Work Done. These concepts reappear throughout Grade 12 and in competitive exams like JEE and NEET.
What you'll practise
- State and apply Zeroth & First Law
- Calculate Internal Energy
- Calculate Work Done
- Apply thermodynamics concepts to NCERT exercise and exemplar problems
All 25 questions in this Thermodynamics – Zeroth & First Law, Internal Energy, Work Done quiz
Grade 11 Physics — Thermodynamics – Zeroth & First Law, Internal Energy, Work Done: 25 practice questions with instant scoring and explanations.
- Zeroth law of thermodynamics:
- Zeroth law defines:
- First law of thermodynamics:
- In first law, sign convention: Q positive when:
- W positive (in ΔU=Q-W) when:
- Internal energy U depends on:
- U is a function of state; Q and W are:
- Work done by gas in isobaric process:
- Work done in isochoric process:
- First law for adiabatic process:
- For ideal gas, U depends only on:
- Heat capacity at constant volume C_v = :
- Heat capacity at constant pressure C_p = :
- Relation: C_p - C_v = :
- Specific heat ratio γ = :
- γ for monatomic ideal gas:
- γ for diatomic ideal gas:
- Unit of internal energy:
- Perpetual motion machine of first kind violates:
- In isothermal process, ΔU for ideal gas:
- Q in isothermal process equals:
- Work done by ideal gas in isothermal expansion from V₁ to V₂:
- Extensive properties include:
- Intensive properties include:
- A gas absorbs 200 J heat and does 50 J work. ΔU:
Question 1 of 250 correct so far