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
attashe74 [19]
3 years ago
6

Help plz:)))I’ll mark u Brainliest

Chemistry
1 answer:
Triss [41]3 years ago
6 0

Answer:

Explanation:

We want the energy required for the transition:

CO  2 ( s ) + Δ → C O 2 ( g )

Explanation:

We assume that the temperature of the gas and the solid are EQUAL.

And thus we simply have to work out the product:

2 × 10^ 3 ⋅ g × 196.3 ⋅ J ⋅ g − 1  to get an answer in  Joules  as required.

What would be the energy change for the reverse transition:

C O 2 ( g ) + → C O 2 ( s ) ?

You might be interested in
What is the half-life (in seconds) of a zero-order reaction which has an initial reactant concentration of 0.884 M with a k valu
pantera1 [17]
<span>Answer: 8.15s
</span><span />

<span>Explanation:
</span><span />

<span>1) A first order reaction is that whose rate is proportional to the concenration of the reactant:
</span><span />

<span>r = k [N]
</span><span />

<span>r = - d[N]/dt =
</span><span />

<span>=> -d[N]/dt = k [N]
</span><span />

<span>2) When you integrate you get:
</span><span />

<span>N - No = - kt
</span>
<span></span><span /><span>
3) Half life => N = No / 2, t = t'
</span><span />

<span>=> No - No/ 2 = kt' => No /2 = kt' => t' = (No/2) / k
</span><span />

<span>3) Plug in the data given: No = 0.884M, and k = 5.42x10⁻²M/s
</span>
<span /><span /><span>
t' = (0.884M/2) / (5.42x10⁻²M/s) = 8.15s</span>
6 0
3 years ago
Read 2 more answers
Which formula represents 1,2-ethanediol?
Oliga [24]

Answer:

1) C2H4(OH)2

Explanation:

A 1,2-ethanediol has an ethane structure consisting of two Carbon atoms with a hydrogen from each carbon substituted by a hydroxyl group. This makes it a 1,2-diol.

8 0
2 years ago
What am I calculating for when solving for 17.0 mL of ethanol, density of ethanol= 0.94 g/mL
True [87]

Answer:

you are caculating for the mass/wight of ethanol

Explanation:

DxV=M

5 0
3 years ago
Which of the following is NOT a characteristic of metals?
lesantik [10]
I can’t see the question :/
5 0
3 years ago
Help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!
BartSMP [9]

Answer:

ok      .

Explanation:            

3 0
3 years ago
Other questions:
  • During science class billy used litmus paper to determine the ph of an unknown liquid. the blue litmus paper turns red but there
    11·1 answer
  • Which of these materials is an example of a conductor? (of electricity)
    11·2 answers
  • HELP!!!!
    6·1 answer
  • Does a fish's scales shred as the fish grows larger
    7·1 answer
  • What are all of the living and nonliving things in an area called?​
    8·2 answers
  • A high energy state is not ideal for atoms, as a result, they form bonds with other atoms. In doing so, what happens to the ener
    8·1 answer
  • Distinguish between the crust and and the lithosphere
    13·1 answer
  • Cual es la convención de 746 Hm
    6·1 answer
  • A pinch of salt has
    6·1 answer
  • An electron initially in a 4p state decays to a lower energy state. which energy state is forbidden?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!