NEET Physics - MCQ Practice Questions
Practice <strong>NEET UG Physics</strong> MCQ questions covering Mechanics, Thermodynamics, Waves & Optics, Modern Physics, Electricity & Magnetism, and Electromagnetic Induction. Aligned with NCERT Class 11 & 12 Physics syllabus.
202 questions | 100% Free
A gas undergoes compression where both pressure and temperature increase. This process is most likely:
The coefficient of performance (COP) of a refrigerator is 5. If 100 J of work is done on it, how much heat is removed from the cold reservoir?
For a monatomic ideal gas, the ratio Cp/Cv is:
When a substance changes phase from solid to liquid at its melting point at constant temperature and pressure, which is true?
A diatomic gas undergoes free expansion into a vacuum. The entropy of the universe:
For a reaction where ΔH = -200 kJ/mol and ΔS = 50 J/mol·K at 300 K, calculate ΔG:
Two identical gases at the same temperature and pressure occupy different volumes. Which thermodynamic property must be the same for both?
A gas undergoes an adiabatic compression where work done on the gas is 500 J. What is the change in internal energy?
A Carnot refrigerator operates between 250 K and 350 K. If 500 J of heat is removed from the cold reservoir per cycle, what is the work input required?
For an ideal gas undergoing a polytropic process PVⁿ = constant, if n = γ = 1.4, what type of process is this?
A substance has ΔH = -150 kJ/mol and ΔS = -100 J/(mol·K). At what temperature will ΔG = 0?
Three moles of an ideal diatomic gas are heated from 300 K to 600 K at constant pressure. What is the heat absorbed? (R = 8.314 J/(mol·K))
A heat engine with 30% efficiency absorbs 5000 J from a hot reservoir. How much heat is rejected to the cold reservoir?
A container of gas at 300 K and 2 atm undergoes isobaric expansion such that its volume doubles. What is the final temperature?
A diatomic ideal gas expands adiabatically from volume V to 2V. If the initial temperature is 400 K, find the final temperature. (Given: γ = 1.4 for diatomic gas)
A Carnot engine operates between 600 K and 300 K. If it absorbs 1200 J of heat from the hot reservoir, calculate the work done and heat rejected to the cold reservoir respectively.
A rigid container holds 3 moles of an ideal diatomic gas at 300 K and 1 atm pressure. The gas is heated until its pressure becomes 2 atm. Calculate the final temperature and the heat supplied to the gas. (Cv for diatomic gas = 5R/2)