Advertisements
Advertisements
Question
Calculate the heat energy that will be released when 5.0 kg of steam at 100°C condenses to form water at 100°C. Express your answer in S.I. unit. (Specific latent heat of vaporization of steam is 2268 kj/kg.)
Solution
Heat released by 5 kg of steam at 100°C to convert into water at 100°C. = mL
= 5 × 2268 KJ = 11440 kj.
APPEARS IN
RELATED QUESTIONS
Differentiate between heat and temperature.
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.
A piece of copper of mass 1 kg is dropped into 2 kg of water at 15°C. If the final temperature of the mixture is 40°C, calculate the intial temperature of copper.
Which requires more heat: 1 g ice at 0°C or 1 g water at 0°C to raise its temperature to 10°C? Explain your answer.
Explain, why are big tubs of water kept in underground cellars for storing fresh fruit and vegetables in cold countries.
Some hot water was added to three times its mass of cold water at 10°C and the resulting temperature was found to be 20°C. What was the temperature of the hot water?
If you apply equal amount of heat to a solid, liquid, and gas individually, which of the following will have more expansion?
