The portion $A B$ of the curve representing the state of matter denotes
The portion $A B$ of the curve representing the state of matter denotes
- A
Change from gaseous state to liquid state
- B
The liquid state of matter
- C
Gaseous state of matter
- D
All of these
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Match the following according to conversion by heat :
Column $-I$
Column $-II$
$(a)$ Required heat to convert solid into gaseous.
$(i)$ Latent heat of fusion
$(b)$ Required heat to convert solid into liquid.
$(ii)$ Latent heat of vaporization.
Match the following according to conversion by heat :
| Column $-I$ | Column $-II$ |
| $(a)$ Required heat to convert solid into gaseous. | $(i)$ Latent heat of fusion |
| $(b)$ Required heat to convert solid into liquid. | $(ii)$ Latent heat of vaporization. |
A solid substance is at $30°C$. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph)
A solid substance is at $30°C$. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph)
Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn
Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn