Two substances A and B of equal mass m are he | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(c) From given curve,

Melting point for $A = 60^\circ C$

and melting point for $B = 20^\circ C$

Time taken by $A$ for fusion $ = (6 - 2) = 4$

Vedclass · Accepted Answer

$\frac{8}{5}$

Vedclass · Answer

(c) From given curve,

Melting point for $A = 60^\circ C$

and melting point for $B = 20^\circ C$

Time taken by $A$ for fusion $ = (6 - 2) = 4$ $minute$

Time taken by $B$ for fusion $ = (6.5 - 4) = 2.5$ $minute$

Then $\frac{{{H_A}}}{{{H_B}}} = \frac{{6 	imes 4 	imes 60}}{{6 	imes 2.5 	imes 60}} = \frac{8}{5}$.

Two substances $A$ and $B$ of equal mass m are heated at uniform rate of $6\, cal s^{-1}$ under similar conditions. $A$ graph between temperature and time is shown in figure. Ratio of heat absorbed ${H_A}/{H_B}$ by them for complete fusion is

Similar Questions

A liquid boils when its vapour pressure equals

What are fusion and melting point ? On what does the value of melting point depend ?

If water at $0\,^oC$ kept in a container with an open mouth, is placed in a large evacuated chamber,

A solid material is supplied with heat at constant rate and the temperature of the material changes as shown below. From the graph, the false conclusion drawn is:

Explain the process of melting of ice with explanation of freezing, melting and melting point.