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Question 68(ii)
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.

For how long was there a change in temperature?

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Solution

There was a change in temperature from 20 s to 50 s; for 50-20= 30 s.

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Similar questions

Q. Question 68(iv)
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.

What was the temperature after 25 s?

Q. Question 68(i)
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.

For how many seconds did the ice block have no change in temperature?

Q. Question 68(iv)
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.

What was the temperature after 25 s?

Q. The following line graph shows the change in temperature of a block of ice when heated.

Study the above graph carefully and answer the questions given below:
(i) For how many seconds did the ice block have no change in temperature?

(ii) For how long was there a change in temperature?

(iii) After how many seconds of heating did the temperature become constant at 100° C?

(iv) What was the temperature after 25 seconds?

(v) What will be the temperature after 1.5 minutes? Justify your answer.

Q. Question 68(iii)
The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions.

After how many seconds of heating did the temperature become constant at

100^{\circ} C

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