All categories

4 years ago

Which of the following decrease when an object becomes colder?

Chemistry

2 answers:

anzhelika [568]4 years ago

5 0

B. Thermal energy. When something becomes colder, it loses heat energy.

Aleks [24]4 years ago

3 0

Yes it is thermal energy for sure.

You might be interested in

Mass and volume can be used to describe what general property?

Wittaler [7]

3 dimensional figure

6 0

3 years ago

Give the name of the following molecule

shutvik [7]

Answer:

$\boxed{Heptene}$

Explanation:

Double Bond => An Alkene molecule

So, the suffix will be "-ene"

7 Carbons => So, we'll use the prefix "Hept-"

Combining the suffix and prefix, we get:

=> Heptene

7 0

4 years ago

Read 2 more answers

Give the formula of the alkanes his molecule contains 28 hydrogen atoms

suter [353]

Answer:

jayfeather friend me

Explanation:

Table 1. Summary of the Straight-Chain Alkanes

Name Formula Number of Structural Isomers

Octadecane C18H38

Nonadecane C19H40

Eicosane C20H42 366,319 (!)

29 more rows

4 0

3 years ago

Water covers over 70% of planet Earth and most of the water is salt water. Which

Serga [27]

Answer:

D. 4

Explanation:

6 0

3 years ago

The above reaction is run and found to follow second order kinetics with a rate constant of 1.30 x 10-3 M-1sec-1. If the initial

Leya [2.2K]

The final concentration after 172 seconds is 1.15 M. To obtain this answer, use the the integrated rate law for the order of reaction. Based on the problem, this is a second order reaction. The units of the rate constant also support that it is a second order reaction.

Further Explanation:

The solution to this problem is straightforward.

Identify the integrated rate law for the corresponding order of reaction.
Substitute the given values into the integrated rate law equation.
Use algebra to solve for the unknown, C(f).

STEP 1: Since the reaction is a second order reaction, the integrated rate law will be:

$\frac{1}{C_{f}} = \ kt \ + \frac{1}{C_{i}}$

where:

C(f) is the final concentration

k is the rate constant

t is the time

C(i) is the initial concentration

STEP 2: Plugging in the values given in the problem into the equation, the following equation should be obtained:

$\frac{1}{C_{f}} \ = (1.30 \ x \ 10^{-3} \frac{ \ 1 }{ \ M-s})(172 \ s) \ + \ \frac{1}{1.54 \ M} \\$

STEP 3: Using algebra to solve for C(f):

$\frac{1}{C_{f}} = \ 0.87295\\ \\C_{f} = \ 1.14554 \ M$

Since the given values only have 3 significant figures, the final answer must be expressed with 3 significant figures as well.

Therefore,

$\boxed {C_{f}\ = \ 1.15 \ M}$

Learn More

Learn more about half life brainly.com/question/4318844
Learn more about first order reaction brainly.com/question/8139015
Learn more about rate law brainly.com/question/1450796

Keywords: rate law, second order, integrated rate law

3 0

3 years ago