A solid material is supplied with heat at a c | vedclass

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

Question

(D) The graph shows the temperature versus heat input for a substance.$OA$: The temperature increases while the substance is in the solid state.$AB$:

Vedclass · Accepted Answer

inverse of heat capacity of vapour

Vedclass · Answer

(D) The graph shows the temperature versus heat input for a substance.$OA$: The temperature increases while the substance is in the solid state.$AB$: The temperature remains constant,indicating a phase change from solid to liquid (melting).$BC$: The temperature increases while the substance is in the liquid state.$CD$: The temperature remains constant,indicating a phase change from liquid to gas (boiling).$DE$: The temperature increases while the substance is in the gaseous phase. Since the rate of heat supply is constant,the slope of the temperature-heat graph is given by $\frac{dT}{dQ} = \frac{1}{ms}$,where $m$ is the mass and $s$ is the specific heat capacity. Thus,the slope is inversely proportional to the heat capacity $(ms)$. However,in the context of such problems,the slope represents the reciprocal of the heat capacity of the substance in that phase. Given the options,$D$ is the most appropriate description as the slope is $\frac{1}{ms}$.

$A$ solid material is supplied with heat at a constant rate. The temperature of the material changes with heat input as shown in the figure. What does the slope of $DE$ represent?

Similar Questions

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

Explain the three states of matter and the process of change in states.

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

Steam at $100\,^{\circ}C$ is more dangerous than the same mass of water at $100\,^{\circ}C$ because the steam

Vedclass Test Series

Exam Paper Generator

Online Exam Module