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alex41 [277]
3 years ago
9

Nyatakan tiga aktiviti kerja yang melibatkanproses pengurusan projek reka bentuk.​

Chemistry
2 answers:
Dmitrij [34]3 years ago
7 0
This needs to be in English thx
ololo11 [35]3 years ago
6 0
I would answer this but unfortunately it is not in english. Sorry.
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When you add heat to a substance, the heat energy gets transferred to kinetic energy, and the molecules began to move a greater distance at a greater speed. When you remove heat, the opposite happens.

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For many purposes we can treat propane as an ideal gas at temperatures above its boiling point of . Suppose the temperature of a
ryzh [129]

Answer: (This question is missing some values).

The  combined gas law is used to determine the change in volume, pressure and temperature of gases. It states that the ratio between the pressure-volume product and temperature is a constant.

Mathematically, P1V1/T1 = P2V2/T2, where P1 and P2 are the initial and final pressures, V1 and V2 are the initial and final volumes, T1 and T2 are the initial and final temperatures in kelvin.

Explanation:

The boiling point of propane is -42°C.

Assuming the initial and final temperatures are 10°C and 25°C respectively; the volume increased by 20%; if the initial pressure = 1atm, final pressure can be found using the equation P1V1/T1 = P2V2/T2.

P1 = 1atm, P2 = ?, V1 = V, V2 = 0.2V, T1 = 10 + 273K = 283K, T2 = 25 + 273K = 298K.

Making P2 subject of formula, P2 = P1V1T2/V2T1

P2 = 1 * V *298/(0.2 V * 283)

<em>P2 = 5.2atm</em>

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A non-harmful bacteria.<br> In food
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Which refers to a material that causes a wave to bounce off of it?
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calculate the volume of oxygen you would need at 1.00 atm and 298 k, Calculate the volume of dry CO2 produced at body temperatur
kirill [66]

Answer: a) Volume of O_2] = 19.2 L

b) volume of CO_2 = 20.8 Liters

Explanation:

Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.

C_6H_{12}O_6+6O_2 \rightarrow 6CO_2+6H_2O

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{23.5g}{180g/mol}=0.131moles

a) Volume of O_2

According to stoichiometry:

1 mole of glucose require = 6 moles of oxygen

Thus 0.131 moles of glucose require =\frac{6}{1}\times 0.131=0.783 moles of oxygen

According to the ideal gas equation:'

PV=nRT

P = Pressure of the gas = 1.00 atm

V= Volume of the gas = ?

T= Temperature of the gas = 298 K      

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 0.783

V=\frac{nRT}{P}=\frac{0.783\times 0.0821\times 298}{1.00}=19.2L

Thus volume of oxygen required is 19.2 Liters

b) Volume of CO_2

According to stoichiometry:

1 mole of glucose produce = 6 moles of CO_2

Thus 0.131 moles of glucose require =\frac{6}{1}\times 0.131=0.783 moles of CO_2

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = 0.960 atm

V= Volume of the gas = ?

T= Temperature of the gas = 37^0C=310 K    

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 0.783

V=\frac{nRT}{P}=\frac{0.783\times 0.0821\times 310}{0.960}=20.8L

Thus volume of CO_2 produced is 20.8 Liters

5 0
3 years ago
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