Question

24. How many calories are required to increase the temperature of 50 grams of water by...

24. How many calories are required to increase the temperature of 50 grams of water by 2 degrees Celsius?

25. A certain material is 15 degrees Celsius. If its temperature increases to double, it will be ___.

26. What is heat?
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Answer #1

24)

The  calories are required to increase the temperature is given by:

where

m = 50 grams is the mass of substance

c = 1 cal g-1k-1 is the specific heat capacity

= 2 is the change in the temperature

putting these values we find that 100 calories of heat is required.

25)

A certain material is 15 degrees Celsius. If its temperature increases to double, it will be heated up

(Note for the 25th question as it is fill in the blanks, multiple answers may be possible).

26)

Heat is defined as a spontaneous flow of energy from one object to another, caused by a difference in temperature between two objects.

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