1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kolezko [41]
2 years ago
6

Enter your answer in the provided box. Liquid methanol (CH3OH) can be used as an alternative fuel in pickup and SUV engines. An

industrial method for preparing it uses the catalytic hydrogenation of carbon monoxide: CO(g) + 2H2(g) CH3OH(l) How much heat (in kJ) is released when 15.0 L of CO at 85°C and 112 kPa reacts with 17.0 L of H2 at 75°C and 744 torr?
Chemistry
1 answer:
andreyandreev [35.5K]2 years ago
3 0

Answer: E=∆H*n= -40.6kj

Explanation:

V(CO) =15L=0.015M³

P=11200Pa

T=85C=358.15K

PV=nRT

n=(112000×0.015)/(8.314×358.15)

n(Co)= 0.564mol

V(Co)= 18.5L = 0.0185m³

P=744torr=98191.84Pa

T= 75C = 388.15k

PV=nRT

n= (99191.84×0.0185)/(8.314×348.15)

n(H2) = 0.634mol

n(CH30H) =1/2n(H2)=1/2×0.634mol

=0.317mol

∆H =∆Hf{CH3OH}-∆Hf(Co)

∆H=-238.6-(-110.5)

∆H = 128.1kj

E=∆H×n=-40.6kj.

You might be interested in
If a proton and an electron are released when they are 5.50×10−10 mm apart (typical atomic distances), find the initial accelera
Vlada [557]

Answer: The initial acceleration of the proton = (4.56 × 10^23) m/s2

The initial acceleration of the electron = (8.36 × 10^26) m/s2

Explanation: The force of attraction between the proton and electron can be computed using the statements of Coulomb's law which state that the force of attraction between two charged particles is directly proportional to the product of the two charges and inversely proportional to the square of their distances apart.

F = (Kq1q2)/(r^2) where K = (9 × (10^9) Nm(C^-2))

But q1 is the charge on a proton = (1.6 × (10^-19)) C

q2 is charge on an electron = -(1.6 × (10^-19)) C

r = (5.50 × (10^-10))mm = (5.50 × (10^-13))m

Computing all that, F = 0.0007616529 N = (7.62 × 10^-4) N

But the force of attraction is converted to that required for motion when they're released.

F = ma.

For proton, m = (1.67 × 10^-27) kg

a = F/m = 0.000762/(1.67 × 10^-27) = (4.56 × 10^23) m/s2

For electron, m = (9.11 × 10^-31) kg

a = F/m = 0.000762/(9.11 × 10^-31) = (8.36 × 10^26) m/s2

QED!

7 0
3 years ago
Simple question plzz help
PSYCHO15rus [73]

Answer:

a  

Explanation:

3 0
2 years ago
Read 2 more answers
What is happening when an oxygen molecule is formed from two separate oxygen atoms?
antoniya [11.8K]

Answer:

They form a double bond

Explanation:

3 0
3 years ago
= Br<br> = C<br> Name is<br> 1<br> , formula is
sergeinik [125]

Answer:

yqujsbr

Explanation:

hejsudh2ihdg4 they t sjh5c4uSvreju5 aur bd84kskythddok6vr for

3 0
2 years ago
An element had five valence electrons for bonding. This element is most likely which of the following?
hichkok12 [17]
Atoms in the nitrogen family.
or phosphorus arsenic antimony and bismuth


Have a great day young scientist
3 0
2 years ago
Other questions:
  • What would happen if an atom of fluorine (F) came into contact with an atom of neon (Ne)?
    14·1 answer
  • Indentify two advantages in daylight saving time
    15·2 answers
  • For each of the following unbalanced equations, calculate how many grams of each product would be produced by complete reaction
    5·1 answer
  • A balloon is filled with 5 moles of helium gas. At a pressure of 1.18 atm and a temperature of 303 K, what volume will the gas o
    8·1 answer
  • Phosphorus reacts with oxygen to form diphosphorus pentoxide, P2O5 . 4P(s)+5O2(g)⟶2P2O5(s) How many grams of P2O5 are formed whe
    12·2 answers
  • Write a balanced half-reaction for the reduction of permanganate ion (Mno) to manganese ion Mn?) in acidic aqueous solution. Be
    12·1 answer
  • Question 1 (1 point)
    7·1 answer
  • US<br> What is the percent of H in<br> NH3?<br> (H = 1.008 amu, N = 14.01 amu)<br> [?]%
    12·2 answers
  • How many valence electrons does B (boron) have?<br> A. 13<br> B. 5<br> C. 10<br> D. 3
    10·1 answer
  • Can a substance be a Lewis acid without being a Bronsted-Lowry acid?<br> Please argue on it
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!