Conceptual Questions of Thermodynamics
Question No
Statement of the question
| Question 1 | Why is the earth not in thermal equilibrium with the sun? |
| Question 2 | When a block with a hole in it is heated, why does not material around the hole expand into the hole and make it small? See Solution |
| Question 3 | A thermometer is placed in direct sun light. Will it read the temperature of air or of the sun or something else? See Solution |
| Question 4 | The pressure in a gas cylinder containing hydrogen will leak more quickly than if it is containing oxygen. Why? See Solution |
| Question 5 | What happens to the temperarture of a room in which an air-conditioner is left running on a table in the middle of the room? See Solution |
| Question 6 | Why does the pressure of the air in automobile tire increases when the automobile is driven for a while? See Solution |
| Question 7 | On removing the valve, the air escaping from the cycle tube cools. Why? See Solution |
| Question 8 | Write the limitations of the First Law of Thermodynamics. See Solution |
| Question 9 | Is it possible, according to the Second Law of Thermodynamics, to construct a heat engine that is free from thermal pollution? See Solution |
| Question 10 | Can specific heat of a gas be zero or infinity? Can specific heat be negative? See Solution |
| Question 11 | An inventor claims to have developed a heat engine, working between 27° and 227° having an efficiency of 45%. Is the claim valid? Why? See Solution |