Question 6: Why does the pressure of the air in automobile tire increases if the automobile is driven for a while? Answer We know that…
Question 3: A thermometer is placed in direct sun light. Will it read the temperature of air or of the sun or something else? Answer…
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…
Question 1: Why is the earth not in thermal equilibrium with the sun? Answer Thermal EquilibriumWhen two bodies are in thermal equilibrium, they are at…
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…
Question 15: Work can be converted completely into heat, so can heat be converted completely into work? ANSWER Work can be completely converted to heat.…
Question 16: Entropy has often called “time arrow”. Explain. ANSWER Entropy is often called “time-arrow” because it requires a particular direction of time; with the…
Question 10: Can specific heat of a gas be zero or infinity? Can specific heat be negative? ANSWER Specific heat of a substance is defined…