COMSATS Physics — Thermodynamics
Thermodynamics is part of the Physics section of the NTS NAT-IE test COMSATS admits on (10 of the 90 MCQs). It breaks into 2 subtopics, and we hold 15 NAT-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (2)
How Thermodynamics is tested
Across the 7 NAT-pattern papers on ParhaiKrlo, Thermodynamics accounts for 2 questions. It appears in 2 of them, about 1 questions a paper. The heaviest was COMSATS Past Paper 06, with 1 question.
| Paper | Questions |
|---|---|
| COMSATS Past Paper 06 | 1 |
| COMSATS Past Paper 03 | 1 |
Thermodynamics MCQs from the NAT-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · COMSATS Past Paper 06 · Thermodynamics
A gas at 300 K is heated at constant pressure until its volume doubles. What is its new temperature?
- A.900 K
- B.327 K
- C.600 K
- D.150 K
Show answer
Answer: C. 600 K — V ∝ T at constant P, so doubling V doubles T: 600 K.
- Q2 · COMSATS Past Paper 03 · Thermodynamics
According to the first law of thermodynamics, the heat supplied to a gas equals:
- A.the work done by the gas only
- B.the increase in its temperature only
- C.the increase in its internal energy plus the work done by the gas
- D.the decrease in internal energy minus the work done
Show answer
Answer: C. the increase in its internal energy plus the work done by the gas — Q = ΔU + W.