IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: XaM!! on May 26, 2010, 12:45:51 pm

Title: enthalpy plastic cup
Post by: XaM!! on May 26, 2010, 12:45:51 pm

Y do we suport a plastic cup in beaker while doing enthalpy prac?

Title: Re: enthalpy plastic cup
Post by: nid404 on May 26, 2010, 01:04:35 pm

Reduce heat loss. Plastic = insulator

Title: Re: enthalpy plastic cup
Post by: Onion on May 26, 2010, 01:28:39 pm

we support the cup in beaker to prevent heat transfer by conduction (air space between the cup and beaker) and also reduce the chance of toppling when you stir

Title: Re: enthalpy plastic cup
Post by: XaM!! on May 26, 2010, 02:50:36 pm

Ahan Thanks guyszzzzzz

Title: Re: enthalpy plastic cup
Post by: molii on May 26, 2010, 06:42:13 pm

Its for support :P :P

Nah, its a calorimeter, reduces heat loss :)