What amount of heat is needed to convert 200 g of water taken at a temperature of 100 degrees C into steam

What amount of heat is needed to convert 200 g of water taken at a temperature of 100 degrees C into steam (specific heat of vaporization of water 2.3 * 10.6 J / kg)

Condition:
m = 0.2.
t = 100 ° C.
L = 2.3 * 10 ^ 6 J \ kg.
To find :
Q-? J.
Decision :
Q = L * m.
[Q] = J \ kg * kg = J.
Q = 2.3 * 10 ^ 6 * 0.2 = 460,000 (J).
Answer: 460 kJ.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.