Degrees in Kelvin are always 273 higher than the corresponding celcius degree. Therefore, we just need to add 273 to the celcius degree to find the degree in Kelvin.
-14 + 273 = 259 K
K is the unit of degrees in Kelvin. The answer is 259K.
259 K. took the test
Answer: The pressure at 273 K is 130 kPa.
Solution:- From Gay-Lussac's law, "At constant volume, the pressure of a given mass of a gas is directly proportional to the kelvin temperature."
The equation used for this is written as:
Where, is the pressure at temperature and is the pressure at temperature.
Temperatures are already given in kelvin so no need to do the conversion. Let's plug in the values and calculate the new pressure.
On rearranging this for new pressure:
Answer:
Carbon has 4 valence electrons
Explanation:
The valence electrons are those found in the last energy level of the atom.
They are responsible for the interaction between atoms,
they can form bonds.
Let's see the electronic configuration of carbon.
The atomic number of C is 6 (Z=6)
To know the number of valence electrons that we have we count in the last energy level of the atom.
The last energy level of carbon is 2 and we 4 electrons is this level.
So carbon has 4 valence electrons.
Carbon, as an element from Group 14 of the periodic table, has four valence electrons. These electrons are the ones available for bonding and are located in its outermost shell.
Carbon belongs to Group 14 in the periodic table and has four valence electrons. These are the electrons that are available for bonding. Elements in Group 14 have four electrons in their outermost shell because the s and p sublevels can hold up to four electrons. For example, in the case of carbon, its electron configuration is 1s22s22p2 which clearly shows the four valence electrons in the outermost shell (the 2s and 2p orbitals).
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(B) lattice energy
(C) kinetic energy
(D) activation energy
(E) ionization energy
Answer:
Yes, T2R is an molecule
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b) 1 × 10^-6 g
c) 1000 g
d) 0.01 g
e) 0.001 g
f) 1 × 10^9 g
The (standard) unit of mass is gram. So, the complete name of each of the units is the name of the numerical value followed by the term "gram".
The complete names are:
In numerical representation of numbers, the meaning of the given numbers are:
deci
micro
kilo
centi
milli
giga
To complete the names, we simply add "gram" to the above representations. So, we have:
decigram
microgram
kilogram
centigram
milligram
gigagram
Read more about names of numerical values at: