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
wolverine [178]
4 years ago
15

QUESTION 3

Chemistry
1 answer:
Blababa [14]4 years ago
4 0
These questions are all about indirect and direct variation with PV=nRT, the ideal gas equation

Q3.
false, because of PV=nRT, the ideal gas equation if V goes up, P has to go down to equal nRT

Q4. false, if V remains constant, and P and T are constant as moles of gas are added, then something is wrong becse something has to change when stuff is added (V has to go down)

Q5.
PV=nRT
when T and n are constant, (R is the gas constant)
PV=k, aka V=k/P which means inversly proportional

TRUE


Q6.
ggeasy
refer to past question
PV=k
if P is doubled then V has to halve in order to equal k
1/2 times 2=1
volume is halved


Q7. use charles law
V/T=k
so
given
V=4
T= kelvins, so 299
4/299=k
so when temp goes to 22 does V go to 3.95
4/299=3.95/295?
true
because they're equal



Q8
FALSE, must be used in kelvins
T=absolute tempurature in kelvins


Q9
PV=nRT
solve for T
(PV)/(nR)=T

use final volumes and pressures
P=5atm
V=24L
n=1
R=0.082057 atm L/(mol K)
(5atm*24L)/(1mol*0.082057 atm L/mol K)=T
see, if you didn't mess up, the units cancel nicely
T=1462.4
1200 K is closest



Q10
PV/T=constant because moles are constant (supposedly)

V=4L
P=2.08atm
T=275K

so find initial to final is constant
(2.08atm*4L)/(275K)=(Pfinal*2.5L)/(323K)
solve for Pfinal
Pfinal=3.92315 atm
answer is 3.9atm

Merry Christmas
You might be interested in
PLEASE NEED HELP!!!!!<br> Name the following compound
stepan [7]

Answer:

3-methylhexane

Explanation:

For naming alkane molecules follow the following steps

1) Find the longest continuous carbon chain and count the number of carbons

In this structure, it is from the bottom, then up, then to the right. Making a right angle. There is 6 carbons in this chain which means it's a hexane

2) Number the longest carbon chain so the constituents (parts not part of the carbon chain) are connected to the carbon with smallest number possible.

This gives the extra CH3 group connected to carbon 3

3) Put it all together

Methyl connected to carbon 3 + hexane

3-methylhexane

5 0
2 years ago
Identify ALL the possible mol ratio from<br> this balanced equation:
Karolina [17]

There are 3 possible mole ratios

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

<em>N₂(g)+3H₂(g)⇒2NH₃</em>

So mol ratio :

N₂:H₂:NH₃=1:3:2

  • Possible mol ratio :

1 mole N₂

3 mol H₂

2 mole NH₃

3 mole H₂

1 mole N₂

2 mole NH₃

<em />

3 0
3 years ago
Compare heat vs. temperature
Jlenok [28]

Answer:

See the answer beloew, please.

Explanation:

The concepts of heat and temperature are related, but they are not the same. Temperature refers to a physical quantity which indicates the amount of heat. The latter corresponds to the energy that moves from one body to another, thus being able to raise or lower the temperature.

5 0
3 years ago
Chlorine ( atomic #17, atomic weight 35), has how many electrons in its outer-most shell?
Lynna [10]
In it's outermost shell, Chlorine has 7 electrons.

Brady
8 0
3 years ago
How does matter and energy cycle through an ecosystem?
Ostrovityanka [42]

Answer:

C

Explanation:

5 0
3 years ago
Other questions:
  • Need science help (screenshot included)
    10·1 answer
  • Which aqueous solution has the lowest boiling point?
    8·1 answer
  • Help me fast plzzzzzz
    5·1 answer
  • A solution is prepared by adding 500 ml of 0.3 m naclo to 500 ml of 0.4 m hclo. what is the ph of this solution?
    6·1 answer
  • Two reactions and their equilibrium constants are given. A + 2 B − ⇀ ↽ − 2 C K 1 = 2.37 2 C − ⇀ ↽ − D K 2 = 0.170 Calculate the
    11·1 answer
  • Pleaseeee help meeee
    15·1 answer
  • When heated, lithium reacts with nitrogen to form lithium nitride: 6Li(s) + N2(g) → 2Li3N(s) What is the theoretical yield of Li
    14·1 answer
  • Someone Please HELP Me
    7·1 answer
  • .
    11·1 answer
  • Which is warmer -30C or -30 F?​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!