Answer:
Explanation:
Heat of combustion is the amount of heat released when 1 mole of the compound is completely burnt in the presence of oxygen.
To calculate the moles, we use the equation:
Thus of sucrose releases = 916.6 J of heat
1 mole of sucrose releases = of heat
Thus ∆H value for the combustion reaction is
There doesn't seem to be a clear answer, it is placed in the center when it's substances is on the corners it doesn't give anything else
Your answer would be answer choice D. The ball is accelerating as the velocity is increasing at a constant rate.
Hope this helps,
♥<em /><em>A.W.E.<u>S.W.A.N.</u></em>♥
A 72 kg athlete climbs a rope to a height of 12m. Calculate the increase in gravitational potential energy it has experienced.
Answer:
8467.2J
Explanation:
Given parameters:
Mass of the athlete = 72kg
Height of the climb = 12m
Unknown:
Increase in gravitational potential energy it has experienced = ?
Solution:
Gravitational potential energy is the energy due to the position of a body. It is mathematically expressed as;
Gravitational potential energy = m x g x h
m is the mass
g is the acceleration due to gravity = 9.8m/s²
h is the height
Insert the parameters and solve;
Gravitational potential energy = 72 x 9.8 x 12
GPE = 8467.2J
Answer:
Thermal energy is a kinetic form of energy that comes from the <u>temperature </u>of matter
Explanation: