Question 5: What happens to the temperature of a room in which an air conditioner is left running on a table in the middle of…
Question 6: When a sealed thermo flask bottle full of hot coffee is shaken, what are the changes, if any, in;(a) the temperature of the…
Question 7: When an object is heated not all the energy it absorbs goes into increasing the velocity of the molecules. Explain where does the…
Question 8: Why does the pressure of the air in automobile tire increases if the automobile is driven for a while? ANSWER We know that…
Question 7: On removing the valve, the air escaping from the cycle tube cools. Why? ANSWER Air in a cycle tube is contained in a…
Question 10: Can a room be cooled by leaving the door of an electric refrigerator open? ANSWER No the room can’t be cooled by leaving…
Question 11: What are the conditions for a process to be reversible? ANSWER A process that can be exactly retraced in the reverse order without producing…
Question 8: Write the limitations of the First Law of Thermodynamics. ANSWER Limitations of the First Law of Thermodynamics: First Law of Thermodynamics is the…
Question 9: Is it possible, according to the Second Law of Thermodynamics, to construct a heat engine that is free from thermal pollution? ANSWER Any…
Question 14: When two systems are in thermal contact, do they have the same amount of kinetic energy? ANSWER Suppose two bodies are at different…