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Explain the terms melting ?
Find the result of mixing 10 g of ice at - 10℃ with 10 g of water at 10℃. Specific heat capacity of ice = 2.1 J kg-1 K-1, Specific latent heat of ice = 336 J g-1 and specific heat capacity of water = 4.2 J kg-1 K-1.
The specific heat capacity of a substance A is 3,800 Jkg `"^(–1)K^(–1)` and that of a substance B is 400 `"^(–1)K^(–1)`. Which of the two substances is a good conductor of heat ? Give a reason for your answer.
Express -400C on the Fahrenheit scale.
Fill in the following blank using suitable word:
1 cal = .......... J
What happens to the average kinetic energy of the molecules as ice melts at 0°C?
Why do doctors advise to put a strip of wet cloth on the forehead of a person having high fever (temperature)?
200 g of hot water at 80°C is added to 300 g of cold water at 10 °C. Calculate the final temperature of the mixture of water. Consider the heat taken by the container to be negligible. [specific heat capacity of water is 4200 J kg-1 °C-1]
A calorimeter is a device used to measure the ______.
The process of converting a substance from solid state to gaseous state is called condensation.
