Answer:
I dont really know, I am sorry, but I am going to ask my teacher
Answer: A) Product identifier
Explanation:
A product identifier is a means, name or number used to identify hazardous and dangerous chemicals on a label or in the SDS( safety data sheet). It provides a special means which helps the user to identify the chemical. Any product identifier used should permit a cross-references to be made among the listed hazardous chemicals required in the written hazard communication program, and the label including SDS(safety data sheet).
D) cost
The fund available for a project is the first factor to be considered to ensure that the project comes to reality and serve it’s purpose
Answer: 0.306 kg/s
Explanation:
If we assume that the specific heat for all stream is constant, we can then say, the mass flow rate of cold water can be calculated by using the energy balance equation.
The energy balance equation basically states that, the heat gained is equal to the heat lost
m'1h1 + m'2h2 = m'3h3
m'1T1 + m'2T2 = (m'1 + m'2) T3
0.5 (60) + m'2(10) = (0.5 + m'2)41
30 + 10m'2 = 20.5 + 41m'2
30 - 20.5 = 41m'2 - 10m'2
9.5 = 31m'2
m'2 = 9.5 / 31
m'2 = 0.306 kg/s
