Each shift worked can pay for 3.75 loads of laundry if each load costs 16 quarters.
This problem can be solved using simple dimensional analysis. The steps are:
STEP 1: Sort first the given in the problem to identify possible conversion factors to be used in the dimensional analysis.
The following equalities are given in the problem:
STEP 2: From these equalities, the following dimensional analysis can be set up:
Therefore, one shift can pay for 3.75 loads of laundry.
Keywords: dimensional analysis, problem solving
Anaerobic respiration
Aerobic respiration
Photosynthesis
Answer:
The correct option is: D. Photosynthesis
Explanation:
Photosynthesis is a biological process in green plants by which food such as sugar (like glucose C₆H₁₂O₆), is synthesized from water (H₂O) and carbon dioxide (CO₂) from the atmosphere, in the presence of light energy. This process produces oxygen gas (O₂) as a by-product.
This reaction converts the light energy from the sun to chemical energy.
The reaction involved is: 6 CO₂ (g) + 6 H₂O + light → C₆H₁₂O₆ (s) + 6 O₂ (g)
Photosynthesis is the only process among the given options, that produces oxygen gas.
Answer: Option (c) is the correct answer.
Explanation:
According to Le Chatelier's principle, when a system is in equilibrium for a long time then it will change its concentration, temperature, volume or pressure to attain a new equilibrium that partly counteracts the applied change.
Since it is given that reaction is exothermic therefore, according to Le Chatelier's principle increase in temperature will be opposed so that reaction can proceed in the forward direction. Therefore, temperature has to be decreased to carry the reaction in forward direction.
Whereas pressure has to be increased so that reaction will shift to the forward side where there are less number of molecules.
Thus, we can conclude that to increase the yield of the products for the given reaction decrease the temperature and increase the pressure.
In a gas, the particles are evenly spaced out and not in any particular order. There is no regular arrangement of liquid next to one another. Solids are regularly arranged and closely packed.
They can be compressed a lot (particles are widely spaced). Matter exists in three different states: solid, liquid, and gas.
By examining the configuration of their particles, it is possible to understand why they have various qualities.
A solid is a condition of matter that, even when unconstrained, keeps its shape and density.
A liquid is a nearly incompressible fluid with a (almost) constant volume regardless of pressure that adapts to the shape of its container.
A sample of matter that assumes the shape of the container it is stored in and develops a consistent density inside the container is referred to as a gas.
Therefore, the arrangements of individual particles in solids, liquids, and gases is different.
Learn more about solids, liquids, and gases here:
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Answer:
Answer is given below:
Explanation:
Given Data:
heat = 3.4kJ
work done is = 1.9 kJ
To Find:
ΔE=?
Formula:
ΔE = q + w
Solution:
ΔE = q + w
ΔE = 3.4 kJ + 1.9kJ
ΔE = 5.3 kJ