Properties Of Solids And Liquids Question 422
Question: Consider two identical iron spheres, one which lie on a thermally insulating plate, while the other hangs from an insulating thread. Equal amount of heat is supplied to the two spheres
Options:
A) temperature of A will be greater than B
B) temperature of B will be greater than A
C) their temperature will be equal
D) can’t be predicted
Show Answer
Answer:
Correct Answer: B
Solution:
Temperature of B will be higher because, due to expansion, centre of mass of B will come down. Same heat is supplied, but in B, potential energy is decreased, therefore internal energy gain will be more.
BETA
