Q.

Ice is packed in saw dust because –

A. saw dust will not get melted easily.
B. saw dust is poor conductor of heat.
C. saw dust is a good conductor of heat.
D. saw dust does not stick to the ice.
Answer» B. saw dust is poor conductor of heat.
Explanation: ice needs to absorb heat energy to melt and become water (called latent heat of fusion). Since saw-dust is a poor conductor of heat, it takes more time for the ice to absorb the required heat energy. This allows ice to remain in solid state for more time when packed in saw dust.
2.4k
0
Do you find this helpful?
18

View all MCQs in

Physics

Discussion

No comments yet