Answer:
E = 4.78×10^−19 J
Explanation:
The chemical equation for the energy of a photon is given by:
E =hν , where h is the Planck constant and ν is the frequency.
E =hν = 6.626×10^−34 Js × 7.21×10^ 14
s−1 = 4.78 × 10^−19 J
Answer:
Chemistry is the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
They answer questions like, like "What makes up this material?," "How does this material change when heated or cooled,?" What happens when I mix this material with another material,?" and "What rules determine how materials change in different situations?" What makes up Chemical X?
Answer:
When 22.0 g of water is heated from 17 °C to 100 °C what amount of heat absorbed?
When 22.0 g of water is heated from 17 °C to 100 °C water absorbed 7643.64 j heat.
Explanation:
Specific heat capacity:
It is the amount of heat required to raise the temperature of one gram of substance by one degree.
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
Given data:
Mass of water = 22.0 g
Initial temperature = 17°C
Final temperature = 100°C
Solution:
ΔT = T₂ -T₁
ΔT = 100°C - 17 °C= 83°C
Q = m.c. ΔT
Q = 22 g× 4.186 j/g °C × 83 °C
Q = 7643.64 j
It means water require more heat which is 7643.64 j to increase its temperature from 17 °C
to 100 °C
.
the are found in places with large caves
