All categories

3 years ago

Papa bless

Chemistry

2 answers:

STALIN [3.7K]3 years ago

7 0

<span>the kinetic theory of heat</span>

4vir4ik [10]3 years ago

7 0

A, kinetic theory of heat

You might be interested in

Convert 4.0 kilometers 2 meters

Dominik [7]

4 x 1000 so 4 kilometers are equal to 4000 meters

4 0

3 years ago

6. A quiet sound exerts a pressure of 4.00 x 10^-8 kPa (kPa= kilopascals, a pressure unit). What is this pressure measured in at

Radda [10]

Answer:

GOOGLE MY HUMAN

Explanation:

GOOGLE!!!!!

3 0

3 years ago

Please help ASAP! Will mark brainiest if correct

Scilla [17]

Answer: 1 is A

2 is C

3 is D

Hope this help

7 0

3 years ago

A particular sample of pure iron requires 0.612 kJ of energy to raise its temperature from 30.°C to 51°C. What must be the mass

mixas84 [53]

Answer:

m = 65.637 g

Explanation:

Heat = 0.612 kJ = 612 J ( Converting to J by multiplying by 1000)

Initial Temperature = 30.°C

Final Temperature = 51°C

Temperature change = Final Temperature - Initial Temperature = 51 - 30 = 21°C

Mass = ?

The relationship between these quantities is given by the equation;

H = mCΔT

where c = 0.444 J/g°C

Inserting the values in the equation;

612 = m * 0.444 * 21

m = 612 / (0.444 * 21)

m = 65.637 g

3 0

2 years ago

A chemical reaction produced 10.1 cm3 of nitrogen gas at 23 °C and 746 mmHg. What is the volume of this gas if the temperature a

adell [148]

Answer:

volume of gas = 9.1436cm³

Explanation:

We will only temperature from °C to K since the conversion is done by the addition of 273 to the Celsius value.

Its not necessary to convert pressure and volume as their conversions are done by multiplication and upon division using the combined gas equation, the factors used in their conversions will cancel out.

V1 =10.1cm³ , P1 =746mmHg, T1=23°C =23+273=296k

V2 =? , P2 =760mmmHg , T2=0°C = 0+273 =273K

Using the combined gas equation to calculate for V2;

$\frac{V1P1}{T1}=\frac{V2P2}{T2} \\ re-arranging, \\V2 =\frac{V1P1T2}{P2T1}$

$V2 =\frac{10.1*746*273}{760*296}$

V2=9.1436cm³

6 0

3 years ago