2 years ago

What happens as a liquid freezes?

Chemistry

1 answer:

marishachu [46]2 years ago

3 0

Answer:

Explanation:

When molecules speed up, they become excited and create friction that is transformed into heat, do when an abject cools, the molecules slow down and thus for have less friction.

You might be interested in

Which of the following elements is found in the p sublevel? O Ti O Li ОСІ O He

ICE Princess25 [194]

Answer:

OC I

Explanation:

can't explain srry

8 0

3 years ago

At a given temperature, the elementary reaction A − ⇀ ↽ − B , in the forward direction, is first order in A with a rate constant

ZanzabumX [31]

Answer:

0.24

Explanation:

We are given that

Rate constant for A= $k=0.0180/s$

Rate constant for B,k'=0.0750/s

We have to find the value of equilibrium constant for the reaction

$A\rightleftharpoons B$

Equilibrium constant, for k= $\frac{k}{k'}$

Using the formula

$k=\frac{0.0180}{0.0750}=0.24$

Hence, the value of the equilibrium constant for the reaction

$A\rightleftharpoons B$ at this temperature=0.24

4 0

2 years ago

At 330 K the vapor pressure of pure n-pentane is 1.92 atm and the vapor pressure of pure n-octane is 0.07 atm. If 330K is the no

AleksAgata [21]

Answer: mole fractions are

For n-pentane = 0.965

For n-octane = 0.035

Explanation: pressure exerted by each gas is,

n-pentane = 1.92atm

n-octane = 0.07atm

Total pressure exerted = 1.92 + 0.07

= 1.99atm.

Recall that the partial pressure exerted by each gas is the product of its mole fraction and the total pressure, that is,

Pres. n-pentane = n x pressure(total)

1.92 = n x 1.99

n = 1.92/1.99 = 0.965 for n-pentane

For n-octane,

n = 1 - 0.965 = 0.035 for n-octane.

7 0

2 years ago

Which scientist established the law of octaves?

garik1379 [7]

Answer:

john newlands

Explanation:

7 0

3 years ago

In the chemical symbol for nitrogen gas, N2, what does the “2” represent?

Vladimir79 [104]

The 2 represets 2 nitrogen gas atoms

4 0

3 years ago