Answer:
E = 2.85×10⁻¹⁹ J
Explanation:
Given data:
Wavelength of light = 700 nm
Frequency of light = 4.3×10¹⁴ s⁻¹
What is the energy of light = ?
Solution:
Formula:
E = h × f
h = plancks constant = 6.63×10⁻³⁴ Js
by putting values,
E = 6.63×10⁻³⁴ Js × 4.3×10¹⁴ s⁻¹
E = 28.5×10⁻²⁰ J
E = 2.85×10⁻¹⁹ J
Explanation:
Basically
The concentration of reactants and the products becomes equal at equilibrium. The equilibrium position is changed if the concentration of the species in the mixture is changed.
- the disturbance causes a change in Q; the reaction will shift to re-establish Q=K.
Hot/cold packs are used by athletes to minimize swelling of injuries such as muscle and joint sprains. ... The hot/cold pack is activated by breaking the seal on the pouch of water and shaking the pack vigorously. This action mixes the water with the chemical starting the exothermic or endothermic reaction.
Answer:
physical
Explanation:
it is physical because you add another chemical to the sodium
