How much do you need to mix hot water at 80 ° C and cold water at 20 ° C to get 60 liters of water at 40 ° C?
| December 6, 2020 | education
How much do you need to mix hot water at 80 ° C and cold water at 20 ° C to get 60 liters of water at 40 ° C? Density of water is 1000kg / m3.
Everything is calculated here using formulas
I hope no need to explain
m = po * V = 10 ^ 3 * 60 * 10 ^ -3 = 60 kg
c * m1 * (80-40) = c * m2 * (40-20)
m2 = 2 * m1
m = m1 + m2
m1 = m / 3 = 60/3 = 20 kg
m2 = 60-20 = 40 kg
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.
