Answer:im not sure but hope this helps
Explanation:
Covalent bonds are formed because of sharing electrons whereas ionic bonds formation occurs because of transferring of electrons. Molecules are the particles in covalent bonds all through compound formation whereas in ionic bonds these are positively charged and negatively charged ions.
Answer:
False. Temperature is independent of volume
Displacement is the total space between point a and b. For example, If I walk 3 times North, 6 times East, and 7 times North, what is the displacement? The answer is 10 because when I walked East there was on object blocking my way.
Answer:
- 4.2 kJ
Explanation:
We shall find out the initial temperature of the gas
PV / T = n R
20 X 10³ X .26 / T = 9 X 8.3
T = 69.6 K
Since the pressure of gas is constant
V / T = constant
V₁ / T₁ = V₂ / T₂
.26 / 69.6 = .12 / T₂
T₂ = 32.12 K
gas is cooling so there will be decrease in internal energy
Change in temperature = 69.6 - 32.12
= 37.48 K.
decrease in internal energy
= - n Cv x fall in temperature
= - 9 x 1.5 x 8.31 x 37.48 ( Cv = 1.5 R given )
= - 4.2 kJ .
