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To what temperature must a sample of nitrogen at 27°C and 0.625 atm be taken so that it’s pressure becomes 1.125 atm at constant

Karo-lina-s [1.5K]

Answer:

The sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

Explanation:

Let's assume nitrogen gas behaves ideally.

Here amount of nitrogen gas in both states remain constant.

So, in accordance with combined gas law for a given amount of an ideal gas in two different states: $\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

where $P_{1}$ and $P_{2}$ are initial and final pressure respectively. $V_{1}$ and $V_{2}$ are initial and final volume respectively. $T_{1}$ and $T_{2}$ are initial and final temperature (in kelvin scale) respectively.

Here $V_{1}=V_{2}$ , $P_{1}=0.625atm$ , $T_{1}=(273+27)K=300K$ and $P_{2}=1.125atm$

So $T_{2}=\frac{P_{2}T_{1}}{P_{1}}=\frac{(1.125atm)\times (300K)}{(0.625atm)}=540K$

540 K = (540-273) $^{0}\textrm{C}$ = 267 $^{0}\textrm{C}$

So the sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

8 0

3 years ago

What is occurring when reactants are mixed and heated and liquid collects in the sidearm of the apparatus

olga55 [171]

When reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

<h3>What is a chemical reaction?</h3>

A chemical reaction is said to occur when reactants are combined to form products. We must note that the formation of products is evidenced by;

Appearance of a liquid
Appearance of a gas
Appearance of a solid

Hence, when reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

Learn more about chemical reaction:brainly.com/question/22817140

#SPJ1

4 0

2 years ago

Which ion has the same electron configuration as an atom of He?

mariarad [96]

Answer;

H- (negatively charged hydrogen ion)

Explanation;

The hydrogen ion has the same electron configuration as an atom of Helium. -Hydrogen ion is formed when a hydrogen atom loses or gains an electron. A positively charged ion is formed when hydrogen atom loses an electron (remaining with zero electrons) while a negatively charged ion (H-) is formed when a hydrogen atom gains an electron thus having 2 electrons.

-Helium atom has two electrons, therefore, it is similar with an negatively charged hydrogen.

3 0

3 years ago

Read 2 more answers

would you select water or gasoline to try dissolving the following : table sugar, motor oil, rubber from tire marks, adhesive re

Damm [24]

To know the answer, we determine the polarities of the solvent we have. Water is polar and gasoline is nonpolar. We remember that like dissolves like. Therefore, the answers are:

<span>table sugar = water
motor oil = gasoline
rubber from tire marks = gasoline
adhesive residue from a packing tape = gasoline</span>

5 0

3 years ago

Read 2 more answers

The process by which a semipermeable membrane allows water molecules, small molecules, and ions to pass through while retaining

Jet001 [13]

The process is know as diffusion in which substances move from higher concentration to lower concentration

5 0

3 years ago

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