Recent content by SAFiiNA

Thank you so much. I know how to work it out now. This is going to be the last question (hopefully) In the question it says iron quickly tranferred to water at 40°C in a calorimeter of mass 50g... I will be using E=MxCxΔT for heat gained by water and calorimeter and add them together. Do I use...

Thank you Delphi51. :) I really appreciate your help. In the question they have given mass and heat capacity of copper calorimeter. I don't know what I need that information for and what I am supposed to work out first. :confused: Confused.com I really want to work thisout myself but I am not...

Homework Statement A 100g of hot iron rivets is heated to some temperature and then quickly transferred to 120g of water at 40°C in a copper calorimeter of mass 50g and specific heat capacity of 400J/(kg.°C).It is found that the final temperature of the mixture is 100°C and the water has...

Thank you! :) I finally managed to work it out myself.

th4450 thank you so much for your help. I have done it right now and got it checked by my teacher. Thanks :)

I worked it out using the formula mentioned above on this thread. So P1 = 1x105 N/m2, T1 = 27°C + 273 = 300K, P2 = ? & T2 = 87°C + 273 = 360K. 1 x 105N/m2 / 300 = P2 / 360 1x105 x 360 = P2 x 300 1x105 x 360 / 300 = P2 P2 = 12 x 104 N/m2

Thank you guys for your help. I worked it out and I have got the answer 12 x 104..is this correct?

Homework Statement A fixed mass of gas at a constant pressure of 1 x 105 N/m2 (pascal) expands to twice its volume at constant temperature of 27°C. The volume is then kept constant, and the gas is heated to 87°C. Calculate the final gas pressure. Homework Equations I think this is the...

WOW! I am stuck on exactly same question. Someone tried to help me with this..I thought I understand it all now but I am stuck again haha. This might make sense to you then you can help me. For 1st part the volume coefficient of expansionis the fractional increase in volume per unit rise in...