A light bulb contains argon gas at a temperature of 295 k and at a pressure of 75 kilopascals. the light bulb is switched on, and after 30 minutes its temperature is 418 k. what is a correct numerical setup for calculating the pressure of the gas inside the light bulb at 418 k?

Question

Chemistry

Felipe Riley

27 September, 14:14

A light bulb contains argon gas at a temperature of 295 k and at a pressure of 75 kilopascals. the light bulb is switched on, and after 30 minutes its temperature is 418 k. what is a correct numerical setup for calculating the pressure of the gas inside the light bulb at 418 k?

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Anastasia Austin · Answer 1

Normally for these types of questions (2 different situations), you can use:

P*V/T = P*V/T

As long as you don't confuse the different values up

Since V is constant, you can say that P/T (before heating up) = P/T (after heating up)

So 75000/295 = P/418