A solid cube having certain fixed melting and | vedclass

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

Question

(B) In a temperature-heat graph,the regions where the temperature remains constant (horizontal lines) represent phase changes,as the heat supplied is

Vedclass · Accepted Answer

Solid into liquid

Vedclass · Answer

(B) In a temperature-heat graph,the regions where the temperature remains constant (horizontal lines) represent phase changes,as the heat supplied is used as latent heat to change the state of the substance.$1$. The portion $AB$ represents the heating of the solid.$2$. The portion $BC$ is a horizontal line where the temperature is constant,representing the melting point of the solid. Thus,it represents the phase change from solid to liquid.$3$. The portion $CD$ represents the heating of the liquid.$4$. The portion $DE$ is another horizontal line representing the boiling point,where the liquid converts into vapour.$5$. The portion $EF$ represents the heating of the vapour.Therefore,the portion $BC$ represents the conversion of solid into liquid.

$A$ solid cube having certain fixed melting and boiling points takes heat from some source. The variation of temperature $\theta$ of the cube with the heat supplied $Q$ is shown in the adjoining graph. The portion $BC$ of the graph represents the conversion of

Similar Questions

$A$ wheel which is initially at rest is subjected to a constant angular acceleration about its axis. It rotates through an angle of $15^{\circ}$ in time $t \ s$. The increase in angle through which it rotates in the next $2t \ s$ is (in $^{\circ}$)

$A$ long straight wire along the $z-$ axis carries a current $I$ in the negative $z$ direction. The magnetic field vector $\vec B$ at a point having coordinates $(x, y)$ in the $z = 0$ plane is

$\int_{-2}^2 |[x]| \, dx$ is equal to

The plant part which consists of two generations,one within the other,is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module