Answer:
Energy released as heat will be -189.417 Kj
Explanation:
The oxidation is the type of reaction in which reaction occurs in the presence of oxygen. The exothermic reaction is the type of reaction in which heat is released. The enthalpy is the type of physical quantity that is used to measure the energy in the thermodynamic system.
As we know the molar mass of Copper II Oxide is 79.545 g
Also the oxidation of copper(II) oxide, CuO(s), is an exothermic process, 2Cu2O (s) + O2-->4CuO (s) delta H reaction= -292.0 kj/mol.
So for 51.60g of Copper II Oxide,
Heat released will be (-292.0 * 51.60/79.545) = -189.417 Kj
Answer:
I need the question first lol
Explanation:
We use the equations of motion,
(A)
(B)
Here, v is final velocity of the body, u is initial velocity of the body, a is the acceleration of the body, t is the time taken in the motion and s is distance traveled by the body.
Given 
, 
and 
.
So, from equation (A)
Now from the equation (B),
Thus, the distance over which the puck accelerates is 0.8 m.
X-4y+5z=0,x+z-3y=0
6x-y+4z=0,x-7y+z=0
x+y-z=3, 2x-8y+13z=1
Hope this helped!
Explanation:
The speed of sound wave only depends on the property of the medium like density and the bulk modulus of the medium particle. The speed of sound also depends on the temperature of the medium.
On comparing sound waves with different frequencies and wavelengths traveling through air, the speed of the wave doesn’t depend on the frequency or the wavelength. Hence, the correct option is (1).
