In the cancrush lab we did in class, we caused a can to implode (crush inwards). This means the volume of the air trapped inside the can decreased. Where did the pressure come from in order for the cantocrush inwards? Only a temperature change can cause the can tocrush inwards. So it doesn't matter if the pressure is greater inside or outside the can. Inside the can had a higher pressure compared to the air pressure in the room. Causing the can to crush. Inside the can had a lower pressure compared to the air pressure in the room. Causing the can to crush. The can and the air pressure in the room was the same. Causing the can to crush.

In the can crush experiment, the can implodes because the pressure inside the can becomes lower than the air pressure outside the can. This is typically achieved by heating a small amount of water inside the can until it turns into steam, which fills the can and pushes out most of the air. When the can is then quickly inverted into cold water, the steam condenses back into liquid water, drastically reducing the pressure inside the can. The higher atmospheric pressure outside the can then crushes it inward.<br /><br />Therefore, the correct answer is:<br /><br />Inside the can had a lower pressure compared to the air pressure in the room, causing the can to crush.