2 years ago

Rays of light incident on a lens and parallel to the principal axis of the lens converge

Chemistry

1 answer:

malfutka [58]2 years ago

4 0

Your answer is going to be B. at the focal point of the lens. :)

You might be interested in

15.1 L N2 at 25 °C and 125 kPa and 44.3 L O2 at 25 °C and 125 kPa were transferred to a tank with a volume of 6.25 L. What is th

Y_Kistochka [10]

Answer:

The total pressure of the mixture in the tank of volume 6.25 litres at 51°C is 1291.85 kPa.

Explanation:

For N2,

Pressure(P₁)=125 kPa

Volume(V₁)=15·1 L

Temperature (T₁)=25°C=25+273 K=298 K

Similarly, for Oxygen,

Pressure(P₂)= 125 kPa

Volume(V₂)= 44.3 L

Temperature(T₂)=25°C= 298 K

Then, for the mixture,

Volumeof the mixture( V)= 6.25 L

Pressure(P)=?

Temperature (T)= 51°C = 51+273 K=324 K

Then, By Combined gas laws,

$\frac{P_{1} V_{1} }{T_{1} } +\frac{P_{2} V_{2} }{T_{2} } =\frac{PV}{T}$

or, $\frac{15.1*125}{298} +\frac{44.3*125}{298} =\frac{P*6.25}{324}$

or, $6.34+18.58=\frac{P*6.25}{324}$

or, $P=\frac{24.92*324}{6.25}$

∴P=1291.85 kPa

So the total pressure of the mixture in the tank of volume 6.25 litres at 51°C is 1291.85 kPa.

3 0

2 years ago

What steps should you take to respond to an accident?

Marina86 [1]

If it’s multiple answers then it’s A,C,D. If it’s only one answer then your best answer is A. Because you always report accidents to an authority so that they can figure out how to solve the problem.

5 0

2 years ago

If two atoms have the same atomic numbers but different mass numbers, then they can be considered atoms of the same element.

castortr0y [4]

Same elements can have different nuclei. So, true.

7 0

2 years ago

Read 2 more answers

Which chemical out of the following 4 is the most dangerous? Glucose, benzene,acetone, ether

Lelechka [254]

Answer:

Explanation: hope this helps

Benzene

5 0

1 year ago

Which of the following includes a wedge.<br>A.axe<br> B.file<br>c.bolt<br>d.hammer

faust18 [17]

The correct answers would be A, and D

3 0

2 years ago

Read 2 more answers