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3 years ago

All of the following conditions of STP are true except A. 101.3 kPa B.3.81kPa.L/mol.K C. 24.2 L D. 273.15 K

Chemistry

2 answers:

Dimas [21]3 years ago

8 0

<u>Answer:</u> The correct answer is Option B.

<u>Explanation:</u>

STP conditions are defined as standard temperature and pressure conditions.

The temperature at this condition is taken as 273.15 K
The pressure at this condition is taken as 1 atm or 101.3 kPa or 760 mmHg or 760 Torr.

Also,

1 mole of a gas occupies a volume of 22.4 L

The value of gas constant at this condition is taken as $8.31\text{L kPa }mol^{-1}K^{-1}$ , $0.0821\text{L atm }mol^{-1}K^{-1}$ etc..

Hence, the correct answer is Option B.

Tasya [4]3 years ago

6 0

The answer is c 24.2l

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3 years ago

What is 694,563,239 rounded to the nearest thousand

lina2011 [118]

694,563,239 rounded to the nearest thousand is 694,563.

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3 years ago

Read 2 more answers

How much heat is absorbed when 447 g of water , Cp = 4.184 J/goC, goes from 25.0 oC to 35.0 oC?

Digiron [165]

Answer:

The answer to your question is Q = 18702.5 J

Explanation:

Data

mass of water = m = 447 g

Cp = 4.184 J/g°C

Temperature 1 = T1 = 25°C

Temperature 2 = T2 = 35°C

Heat = Q = ? Joules

Process

1.- Write the formula to calculate heat

Q = mCp(T2 - T1)

2.- Substitution

Q = (447)(4.184)(35 - 25)

3.- Simplification

Q = (447)(4.184)(10)

4.- Result

Q = 18702.5 J

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3 years ago

Consider the generic reaction: 2 A(g) + B(g) → 2 C(g). If a flask initially contains 1.0 atm of A and 1.0 atm of B, what is the

irina1246 [14]

Answer:

b. 1.5 atm.

Explanation:

Hello!

In this case, since the undergoing chemical reaction suggests that two moles of A react with one moles of B to produce two moles of C, for the final pressure we can write:

$P=P_A+P_B+P_C$

Now, if we introduce the stoichiometry, and the change in the pressure $x$ we can write:

$P=1.0-2x+1.0-x+2x$

Nevertheless, since the reaction goes to completion, all A is consumed and there is a leftover of B, and that consumed A is:

$x=\frac{1.0atm}{2}=0.5atm$

Thus, the final pressure is:

$P=1.0-2(0.5)+1.0-(0.5)+2(0.5)\\\\P=1.5atm$

Therefore the answer is b. 1.5 atm.

Best regards!

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3 years ago

Understanding how much of a product is produced in a reaction is referred to as ________ understanding the reaction?

777dan777 [17]

Hello!

Understanding how much of a product is produced in a reaction is referred to as Stoichiometrically understanding the reaction.

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