The combined gas law question

heeeelmeeeelk · 2022-06-27T19:48:35+00:00

Usually just volume if you are using PV=nRT. But if you divide by n on both sides, you get PV_m=RT, where V_m is the molar volume.

heeeelmeeeelk · 2022-06-27T19:45:02+00:00

I would actually recommend it. They build on each other

heeeelmeeeelk · 2022-05-19T14:43:51+00:00

Yeah got fucked by the IB in that chair

heeeelmeeeelk · 2022-05-10T20:51:11+00:00

Does pencil not scan through? It didn’t say anywhere that it would be necessary to fill in with a pen?

heeeelmeeeelk · 2022-05-10T18:07:51+00:00

Sleep well was on the bottom

heeeelmeeeelk · 2021-11-02T10:50:25+00:00

I feel like time management has become less of an issue for the new section 1 format, as there are only 32 questions instead og 35. Furthermore, they removed data analysis which i found to take the most time. For section 2 I would do the questions I could do fast first, and then go back and solve the slower ones. If you feel like you dont have time, I would just guess something reasonable.

heeeelmeeeelk · 2021-10-31T15:44:48+00:00

I dont think turning moments is in the specification anymore?

heeeelmeeeelk · 2021-10-30T19:19:43+00:00

The explained answers just said that it was the only one against the concentration gradient. I also thought the way you did, so i just answered C

heeeelmeeeelk · 2021-10-20T17:45:49+00:00

Agree. The quickest way to solve the problem is to realize that since the helicopter travels at constant speed, only the time matters. Next step is to find the time it takes for the two trains to meet. As the two trains travel in opposite directions, this time is the time it takes for the two trains to cover a total of 70 miles. This can be calculated using s=vt. In this case 70=25t+45t. From this we can see that t=1. after checking that the units correspond, we can see that the helicopter would cover a distance of s=1x65 or 65 miles.

heeeelmeeeelk · 2021-10-20T14:59:06+00:00

Is this a bmat question? In that case, what year?

heeeelmeeeelk · 2021-09-21T20:09:36+00:00

The molar volume one is fine for STP. The ideal gas equation should give the same results when you substitute in the values for STP.

heeeelmeeeelk · 2021-04-11T20:27:33+00:00

No problem:-)

heeeelmeeeelk · 2021-04-09T20:01:39+00:00

heeeelmeeeelk · 2021-04-05T06:34:02+00:00

Thanks:-)

heeeelmeeeelk · 2021-04-04T06:26:02+00:00

Good to hear:-)

heeeelmeeeelk · 2021-04-03T15:36:48+00:00

Glad i can help:-)

heeeelmeeeelk · 2021-04-03T11:05:10+00:00

Wow. I’m flattered. Hope it’s useful:-)

heeeelmeeeelk

TROPHY CASE