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
jasenka [17]
3 years ago
13

Hey, I’ll give brainliest. Just please help.

Chemistry
1 answer:
Andre45 [30]3 years ago
8 0

Answer:

C

Explanation:

You might be interested in
Which process created the gases of earth’s first atmosphere?
lisov135 [29]

Answer:

Volcanic Activity

Explanation:

3 0
3 years ago
Read 2 more answers
Basilosaurus cetoides was a large mammal that existed 35 million years ago. It was 20 m long and had a large skull, incompletely
Korvikt [17]

Answer: hey so I’m taking the same test as you right now. I’m on that question and I searched it up and came on here. Would you mind telling me the answer?

Explanation:

5 0
3 years ago
How many joules are needed to warm 65.6 grams of water from 14ºC to 22.5ºC?
Ahat [919]

Answer:

2334.1136 Joules

Explanation:

Q= 65.6 g (4.186)(8.5)

If it's suppose to be in kilograms, the answer will be 2.3341136 Joules.

7 0
3 years ago
An ideal gas contained in a piston-cylinder assembly is compressed isothermally in an internally reversible process.
Tju [1.3M]

Answer:

a) \Delta S

b) entropy of the sistem equal to a), entropy of the universe grater than a).

Explanation:

a) The change of entropy for a reversible process:

\delta S=\frac{\delta Q}{T}

\Delta S=\frac{Q}{T}

The energy balance:

\delta U=[tex]\delta Q- \delta W

If the process is isothermical the U doesn't change:

0=[tex]\delta Q- \delta W

\delta Q= \delta W

Q= W

The work:

W=\int_{V1}^{V2}P*dV

If it is an ideal gas:

P=\frac{n*R*T}{V}

W=\int_{V1}^{V2}\frac{n*R*T}{V}*dV

Solving:

W=n*R*T*ln(V2/V1)

Replacing:

\Delta S=\frac{n*R*T*ln(V2/V1)}{T}

\Delta S=n*R*ln(V2/V1)}

Given that it's a compression: V2<V1 and ln(V2/V1)<0. So:

\Delta S

b) The entropy change of the sistem will be equal to the calculated in a), but the change of entropy of the universe will be 0 in a) (reversible process) and in b) has to be positive given that it is an irreversible process.

7 0
3 years ago
2HCI + Na2SO4 -&gt; 2 NaCI + H2SO4
Mashutka [201]
Fhicifhyfcifyfjfhdjgfcgufhhdhgddtrd
3 0
3 years ago
Other questions:
  • Which scientist is credited with first stating that electrons orbit an atomic nucleus
    14·1 answer
  • Help please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • The process of converting nitrate to nitrogen gas and nitrous oxide is called
    14·1 answer
  • A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
    12·1 answer
  • Is this equation balanced? Why or why not?
    12·2 answers
  • You have a different rock with a volume of 30cm and a mass of 60g, What is its density?
    15·1 answer
  • How does carbon 14 work
    13·1 answer
  • What are electrolytes
    10·1 answer
  • WILL GIVE BRANLIEST AND 30 POINTS!! Please help!
    6·1 answer
  • A gas at 300 k and 4.0 atm is moved to a new location with a temperature of 250 k. the volume changes from 5.5 l to 2.0 l. what
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!