Question

Write the following steps of an activity in sequence to show that water is a bad conductor of heat.
(A) Clamp the test tube in slanting position and heat the test tube near its mouth with Bunsen burner.
(B) This shows that heat is not conducted through water and water is a bad conductor of heat.
(C) Take a hard glass tube containing cold water filled up to `3//4` of its length and drop small pieces of ice, wrapped in copper wire gauge
(D) It is observed that water near the mouth of the test tube starts boiling but the ice does not melt.
A. ABCD
B. DCBA
C. ADCB
D. CADB

Answer 1

Correct Answer - D
Take a hard glass tube containing cold water filled up to `3//4` of its length and drop small pieces of ice, wrapped in copper wire gauge (c). Clamp the test tube in slanting position and heat the test tube near its mouth with bunsen burner (a). It is observed that water near the mouth of the test tube starts boiling but the ice does not melt (d). This shows that heat is not conducted through water and water is a bad conductor of heat (b).