ashley071718
Answered

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3. A light bulb containing argon gas is switched on,
and after 30 minutes its temperature is 418 K
What Celsius temperature is equal to 418 K?

Sagot :

muhammadsayed06793

Answer:

The assumption is quite reasonable.........

A lightbulb contains Ar gas at a temperature of 295K and at a pressure of 75kPa. The light bulb is switched on, and after 30 minutes its temperature is 418 K. What is a numerical setup for calculating the pressure of the gas inside the light bulb at 418K?

Explanation:

P

1

T

1

=

P

2

T

2

given constant

n

, and constant

V

, conditions that certainly obtain with a fixed volume light bulb.

And so

P

2

=

P

1

T

1

×

T

2

=

75

⋅

k

P

a

295

⋅

K

×

418

⋅

K

≅

100

⋅

k

P

a

.

Had the light bulb been sealed at normal pressure during its manufacture, what do you think might occur when it is operated?

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