132: Damage.

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Bri's P.O.V.

"Hey little sis

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"Hey little sis." Said Kaiser as he came into my room unannounced and uninvited.

"Um... Hi?"

"What are you up to?"

"Just doing homework. I've been stuck on the same qestion for 20 minutes...."

"What subject?"

"AP Physics. "

"Mind if I take a look?" He asked.

"Go ahead." I replied as I handed my papers to him and he sat next to me.

After staring at the question for about 10 seconds he spoke.

"Its an isothermal process, so there are only two possibilities: the gas is expanding or the gas is being compressed. If the gas is expanding, the gas is doing work and therefore needs heat in order to remain at constant temperature. If the gas is compressed, then work is being done on the gas and heat must be emitted in order for the temperature to remain constant. It says heat is added, so the gas must be expanding. This means the volume is increasing and work is being done by the gas. The pressure must decrease, which can be seen using the formula PV=nRT. Since temperature is constant, if volume goes up, pressure must go down. Therefore the average kinetic energy will remain constant."

I stared at him with a dropped jaw.

"How do you know all of that?"

"I spent 12 years in a forest with a cousin who's like the modern day einstein. He taught me a lot."

"So you're like a genius too?"

"No way. I'm only good in science and math. I suck balls at everything else."

"Nice reference." I laughed.

"Sooo how much homework do you have left?"

"This is the last page why?"

"Well Ava went with your mom to visit a friend and I kinda don't like your dad so I figured you could show me around Chicago tonight."

"With what car? Ava took hers."

"Your dad's."

"You're gonna make me steal my dad's car?"

"Do you know how to drive?"

"No."

"Alright then, no. Just get me the keys and I'll steal it for you."

"My dad will kill me if he finds out."

"He won't find out. He's sleeping. And if he does then I'll take complete blame for it. Deal?" He asked as he held out his hand.

"If it means I can spend time with my hot future brother in law then sure." I joked though I kind of wasn't joking.

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