Answer:
It produces free energy.
Explanation:
Photosynthesis is a process which is used by the plant for producing energy in the form of ATP. This energy is used by the plants in different activities which enables the plant to grow and develop successfully. There are some factors which causes change in the rate of photosynthesis means the production of energy for the plant body. If the environmental factors are suitable, more energy is produced through the process of photosynthesis.
Answer:
D - Silver has lower reactivity than hydrogen and cannot replace it
Explanation:
If we assume , Ag also reacts just like other metals as
Metal + H₂O ---> Metal Hydroxide + H₂
then Ag forms as
Ag + H2O ----->AgOH + 
H2
here Ag is converting into Ag⁺ and 2H⁺ are converting into H₂
for reaction Ag --->Ag⁺ + e⁻ E° = -0.799 V
for reaction H⁺ + e⁻ ---->H₂ E° = 0 V
by Adding those 2 above equations net E° will be -0.799 which is negative.As per Faradays Law
ΔG° = -nFE°
here we got E° as negative then ΔG° will be positive
As per thermodynamics if ΔG° is +ve then reaction is not feasible
so, then given reaction does not occur.....
Answer: Confidence, strength, potential
Explanation:
Answer:
2 mole H2O = 18.02 g will not work.
Explanation:
Let us check the options one by one:
1 mole of O2 weighs 32 g.
⇒Hence option A is correct.
1 mole of H2O weighs 18 g.
⇒Hence option B is wrong.
From the balanced equation we can say :
1 mole of CH4 reacts with 2 moles of O2 to give 1 mole of CO2 and 2 moles of H2O.
⇒Hence option C and D are correct.
Answer:
f. wt. = 158 g/mol
Explanation:
Given:
mass = 20.83 g
Vol = 4.167 L
Pressure = 79.97 KPa x 0300987 Atm/KPa = 0.78924 Atm
T = 30°C + 273 = 303K
R = 0.08206 L·Atm/mol·K
PV = nRT = (mass/f.wt.)RT => f. wt. = mass x R x T / P x V
f. wt. = 20.83g x 0.08206 L·Atm/mol·K x 303K / 0.78924 Atm x 4.167L
= 158 g/ mol
