Question

10 कैलोरी ऊष्मा से 2 ग्राम जल के ताप में वृद्धि होगी-
(i) 10°C (ii) 8°C (iii) 5°C
(iv) 2°C​

Answer 1

Answer:

I think answer is option 3rd

Answer is = (3)

Answer 2

Option (c) is correct.

Explanation:

The heat energy required to raise the temperature of substance is given as

$Q=mc \Delta T$

Here, m is the mass of material, c is the specific heat of substance and $\Delta T$ is the change in temperature.

Given m = 2 g, Q = 10 cal and c = 1 calorie/gram °C

Substitute the value, we get

$10 cal = 2 g \times 1 cal /g\ ^0C \times \Delta T$

$\Delta T=5\ ^0C$

Thus, to rise in temperature of 2 g water is $5\ ^0C$

#Learn More: Heat

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