1. D
2. DR
3. SR
4. DR
5. C
6. SR
7. S
8. D
10. C
Answer : To calculate the standard molar enthalpy of complete combustion of liquid ethanol can be done by using the formula given below;

Now, the enthalpies of the elements in their standard state is zero always.
So the

Here we can avoid the heat of enthalpy of oxygen,carbon dioxide and water as they exists in their standard states.
So the

=
m = mass of the truck traveling = 2500 kg
v = speed of the truck traveling = 75 km/h = 75 (km/h) (1000 m/ 1 km) (1 h /3600 sec) = 20.83 m/s
h = plank's constant = 6.63 x 10⁻³⁴
λ = wavelength of truck = ?
according to de broglie's principle, wavelength of truck is given as
λ = h/(mv)
inserting the values in the above equation
λ = (6.63 x 10⁻³⁴)/((2500) (20.83))
λ = 1.3 x 10⁻³⁸ m
At the sea shore there is less water so the sun shines directly in them, deeper. there is more water. so their bodies are more in the water therefore the sun is less in their bodies.
Dissolving is your answer to this question. Becuase when something dissolves it is no longer in the same shape or state cause if something dissovles then goes away into another state.