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mina [271]
3 years ago
11

Which of the following chemical bonds have the lowest potential energy?

Chemistry
1 answer:
DIA [1.3K]3 years ago
6 0
What are the choices?
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HELP ME WITH ONE OR BOTH OF THESE QUEATIONS PLEASEEEE
marta [7]

Answer:

2. 181.25 K.

3. 0.04 atm.

Explanation:

2. Determination of the temperature.

Number of mole (n) = 2.1 moles

Pressure (P) = 1.25 atm

Volume (V) = 25 L

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =?

The temperature can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

1.25 × 25 = 2.1 × 0.0821 × T

31.25 = 0.17241 × T

Divide both side by 0.17241

T = 31.25 / 0.17241

T = 181.25 K

Thus, the temperature is 181.25 K.

3. Determination of the pressure.

Number of mole (n) = 10 moles

Volume (V) = 5000 L

Temperature (T) = –10 °C = –10 °C + 273 = 263 K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =?

The pressure can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

P × 5000 = 10 × 0.0821 × 263

P × 5000 = 215.923

Divide both side by 5000

P = 215.923 / 5000

P = 0.04 atm

Thus, the pressure is 0.04 atm

6 0
3 years ago
Controlled nuclear chain reactions
Lunna [17]
The nuclear reactions which are under experimenter's control are said to be controlled nuclear reactions. In this, you can maintain the speed of the incident particle. α and β-decay process are examples of non-controlled nuclear reactions. 
8 0
3 years ago
How many joules are required to heat 2 l of water in a pot from 20 ◦c to the boiling point of water? the specific heat of water
miss Akunina [59]
  The  joules  required  to   heat 2L  of  water  in  a  pot  from  20  c  to  the  boiling  point  of  water  is  calculated     using the following  formula

  Q=    MC  delta  T
M  = mass  =   density  x   volume(  2  x 1000= 2000ml)
M  =     1g/ml  x2000  ml  =  2000g
C  =  specific  heat   capacity =  4.18  g/c
delta  T  =  change  in  temperature  =  100 c (  boiling  point  of  water)   -  20 c =  80 c 
Q  is therefore  =   2000 g x 4.18 j/g c  x  80c  =  668800j
 


4 0
3 years ago
Which of these four contain an ionic bond, H2O, CO, P2O5, or AlCl3? i answered earlier and I was wrong.
bazaltina [42]
<span>I would say D AlCl3. covalent bonding is when 2 or more elements share electrons (usually when nonmetals bond with nonmetals) ionic bonding is when one element steals another's electrons (usually when nonmetals bond with metals)</span>
6 0
3 years ago
A gas that exerts a pressure of 15.6 psi in a container with the volume of ______ L will exert a pressure of 24.43 psi when tran
dybincka [34]
Boyle's Law states: pV = constant.

24.43 x 1.895 = 46.29485

therefore, 15.6 x _____ = 46.29485

unknown = 2.968L
4 0
3 years ago
Read 2 more answers
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