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Firlakuza [10]
3 years ago
13

How many CARBON atoms are present in 2C3H8O3 ?

Chemistry
1 answer:
Travka [436]3 years ago
5 0

Answer:

b

Explanation:

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Approximately how much heat in kj was released from the combustion of the 1-g sample?
Katyanochek1 [597]

Approximately, 21 kJ was released from the combustion of the 1-g sample.

<h3>Define Heat. What is the SI unit of Heat?</h3>

Because heat is a type of energy, the SI unit for heat is also joules (J), which is defined as the quantity of energy required to increase the temperature of a given mass by one degree. This is significant because heat is a form of energy. Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object. Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred. The joule is the S.I. unit for heat.

To learn more about Joule, visit:

brainly.com/question/25982371

#SPJ4

3 0
2 years ago
∆G° for the reaction of nitrogen with hydrogen to produce ammonia (see balanced chemical equation below) has a value of -33.3 kJ
Juliette [100K]

Answer:

-0.85KJ

Explanation:

Given N2(g) + H2(g) <--->2NH3(g)

Kp =[ P(NH3)]²/[P(H2)]³[P(N2)]

Where P is the pressure of the gas

P(H2)b= P(N2) = 125atm

P(NH3) = 200atm

Kp = 2²/(125)³(125)

Kp = 2.048 ×10^-6

∆G = -RTlnKp

R =0.008314 J/Kmol

T = 25 +273/= 298k

= 8.314 ×10^-3 × 298 × ln(2.048 ×10^-6)

= -0.008314 × 298 × (-13.099)

= 32.45KJ

∆G = ∆G° + RTlnKp

∆G = -33.3 + 32.45

∆G = -0.85KJ or -850J

3 0
4 years ago
What makes sherbet fizzy​
Tasya [4]

Answer:

The chemical reaction between the citric acid and sodium bicarbonate

Explanation:

8 0
3 years ago
Saturated liquid water flows steadily into a well-insulated electrical water heater (see Anim. 4-1-1) with a mass flow rate (m⋅)
Otrada [13]

Answer:

a. 2257.7 kW  b. 6.057kw/K

Explanation:

Steam existing at 100KPa with t = 20C, we can obtain values of enthalpy and entropy from table

h1 = hf = 417.4 kJ/kg

s1 = 1.302 KJ/kg.K

h2 = hg = 2675.1 kJ/kg

s2 = 7.359 kJ/K

a. Electrical Power consumption of system is given by Wel = mass x Change in Enthalpy

Wel = 1 x (h2 - h1) = 1 x (2675.1 - 417.4) = 2257.7 kw

b . Entropy Generation is given by Change in Entropy  = Entropy generation - heat dissipated/temperature, since we have a well insulated system with no losses, q =0, hence

ΔS = Sgen + 0/T = Sgen

m(S2 - S1) = Sgen

Sgen = 1 x (7.359 - 1.302) = 6.057 kW/K

3 0
3 years ago
How many atoms are in 2.70 moles of iron (Fe) atoms? (2 points)
Travka [436]
Hey there!

2.70 moles of Fe x (6.022 x 10^23) atoms of Fe    = 1.63 x 10^24 atoms of Fe
                             _______________________
                                       1 mole of  Fe

Answer: 1.63 x 10^24 atoms of Fe

Hope this helps :)
7 0
3 years ago
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