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frez [133]
2 years ago
7

A heterogeneous material may be

Chemistry
2 answers:
zheka24 [161]2 years ago
8 0
A mixture. A mixture may be heterogeneous or homogeneous
IgorLugansk [536]2 years ago
7 0

Answer:

4) a mixture.....................

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Making methanol the element hydrogen is not abundant in nature, but it is a useful reagent in, for example, the potential synthe
stealth61 [152]
ΔG⁰ = ΔH⁰ - TΔS
ΔH⁰ = Hf,(CH₃OH) - Hf,(CO) = -238.7 + 110.5 = -128.2 kJ/mol
ΔS = S(CH₃OH) - S(CO) - 2S(H₂) = 126.8 - 197.7 - 2 x 130.6 = -332.1 J/mol.K
So 
ΔG⁰ = - 128200 + 332.1 T
For the reaction to be spontaneous:
ΔG⁰ < 0
So: -128200 + 332.1 T < 0
332.1 T < 128200
T < 386.028 K
5 0
2 years ago
Calculate the standard entropy of vaporization of ethanol, C2H5OH, at 285.0 K, given that the molar heat capacity at constant pr
MArishka [77]

Answer: The standard entropy of vaporization of ethanol is 0.275 J/K

Explanation:

C_2H_5OH(l)\rightleftharpoons C_2H_5OH(g)

Using Gibbs Helmholtz equation:

\Delta G=\Delta H-T\Delta S

For a phase change, the reaction remains in equilibrium, thus \Delta G=0

\Delta H=T\Delta S

Given: Temperature = 285.0 K

\Delta H=78.3J/mol

Putting the values in the equation:

78.3J=285.0K\times \Delta S

\Delta S=0.275J/K

Thus  the standard entropy of vaporization of ethanol is 0.275 J/K

4 0
3 years ago
A student is taking notes about the four steps in hurricane formation. Which of the following should be written as step number 1
Brrunno [24]
Tropical disturbance is the correct answer
3 0
3 years ago
If the reactants of a reaction are HCI and NaOH, what could be a product?
Nutka1998 [239]

Answer

HCl+NaOH=NaCl+H2O (NaCl+H20)=the product

is a double substitution reaction

so the product ,one of them will be or Nacl or Water(H2O)

6 0
1 year ago
Mike Trout of the Los Angeles Angels has a contract worth $426,500,000. If you earn $100,000 per year, how many years would it t
bonufazy [111]

Answer:

The number of years it would take you to earn what Mike Trout will earn on his contract is 4,265

Explanation:

Mike Trout of the Los Angeles Angels has a contract worth $426,500,000

On the other side, you earn $100,000 per year.

To calculate the number of years it would take for you to earn what Mike Trout will earn from his contract, you must divide the amount Mike earned by the amount you earned during a year:

$426,500,000 ÷ $100,000 per year= 4,265

The number of years it would take you to earn what Mike Trout will earn on his contract is 4,265

6 0
2 years ago
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