A. Heat. Positive as the sweat gains heat to evaporate.
B. Work. Negative as the balloon does work to expand.
C. Heat. Positive as heat is transferred to the mixture to warm it up.
Answer:
Erythrocytes
Explanation:
Water passes through the Bowman's capsule into the glomerular filtrate and so do salts, glucose, urea, amino acids, and a majority of smaller proteins (molecular weight < 68,000). Erythrocytes or other blood cells do not enter the glomerular filtrate.
Answer:
We don't have the passage. A random sampling of surfactant uses includes:
- removal of oily materials from objects (clothes and dishes)
- forms remarkable structures called bubbles
- Assists in forming emulsions (e.g., mayonaise and paints)
Explanation:
The structure of a surfactant makes one end of a molecule hydrophilic and the other end hydrophobic. In water, they self-assemble into micelles, an arrangement in which the hydrophobic ends align towards the center, and the hydrophilic ends are pointed outwards to the water. This self-assembly is apparant when bubbles are made. The molecules quickly align themselves such that the hyrophilic ends are oriented inwards towards a thin layer of water and the hydrophobic ends are pointed outward to the air. This arrangement allows a mono-molecular sphere of water molecules to remain stable enough to float, reflect light, and please. These same properties allow the inverse to occur. Soap molecules surround a hydrophobic mass (e.g., the hamburger grease on your shirt) and solubilize it into small micelles which are then carried away in the surrounding water.
Answer:
if it is espresso(1 shot), the coffee content to be considered is: (77/44)*(10/3)= 5.833= 0.005833 grams
Explanation:
Answer
a)
:
= +ve
b)
:
= -ve
c)
:
= +ve
d)
:
= +ve
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
a) ![PbCl_2(s)\rightarrow Pb^(2+)(aq)+2Cl^-(aq)](https://tex.z-dn.net/?f=PbCl_2%28s%29%5Crightarrow%20Pb%5E%282%2B%29%28aq%29%2B2Cl%5E-%28aq%29)
As solid is moving to ions form , randomness increases and thus sign of
is positive.
b)![MgO(s)+CO_2(g)\rightarrow MgCO_3(s)](https://tex.z-dn.net/?f=MgO%28s%29%2BCO_2%28g%29%5Crightarrow%20MgCO_3%28s%29)
As gaseous reactants are converted to solid products , randomness decreases and thus sign of
is negative.
c) ![CO_2(aq)\rightarrow CO_2(g)](https://tex.z-dn.net/?f=CO_2%28aq%29%5Crightarrow%20CO_2%28g%29)
As liquid is changing to gas randomness increases and thus sign of
is positive.
d) ![C_5H_{12}(l)+8O_2(g)rightarrow 5CO_2(g)+6H_2O(g)](https://tex.z-dn.net/?f=C_5H_%7B12%7D%28l%29%2B8O_2%28g%29rightarrow%205CO_2%28g%29%2B6H_2O%28g%29)
As 8 moles of gaseous reactants are converted to 11 moles of gaseous products , randomness increases and thus sign of
is positive.